History Heartwarming / Doug

* In one of the early episodes Judy is supposed to perform at Doug's school with Doug himself forced to introduce her. [[GenreSavvy Knowing]] [[{{Cloudcuckoolander}} how weird]] [[TrueArtIsIncomprehensible she is]], Doug tries everything he can to get her to change her mind until he sees her backstage as he was trying to hide. She's distraught because they can't find Doug and nervous that she won't do well until Doug comes out of hiding and proudly introduces his sister.

** Everyone has tried hard for the wedding to be perfect (albeit so hard that they end up thinking more about themselves than the bride and groom but it was still a nice gesture.

** Everyone has tried hard for the wedding to be perfect [[spoiler:(so hard that they end up thinking more about themselves than the bride and groom)]]

** Note that during the reaction shot of getting a pack of gum for his efforts and being heckled by Roger, Doug is ''smiling'' nonchalantly. He didn't care about getting praise or a reward, he just wanted a clean conscience.

* In a later episode, Judy and Doug get in a sibling feud about how they want Dirtbike to grow up, with each fearing she'll either be a comic nerd or a Shakespeare expert. Then Dirtbike [[AdultFear gets locked in the Dinks' house with Doug and Judy having no way to get inside]] until Doug trips the alarm on purpose. Afterward, they both admit their pettiness endangered their little sister and they decide to compromise. Judy will let Dirtbike play as "Quailgirl" and Doug lets her read Shakespeare. Then Porkchop starts teaching her how to dance, and Doug holds her up as she marches.

* "Doug's No Dummy", when the other kids actually save Doug's act.

** When Roger arrives at the vet, Doug is terrified that Roger is going to be furious at him, but instead Roger just asks him what's wrong with his cat, even collapsing to his knees and crying.

** Even though Doug is disappointed that the family can't have a big traditional celebration due to the new baby being due over Christmas, he takes it in stride. Rather than show his Christmas list to his dad, he lies that it's a list of baby names -- leading to a SugarWiki/FunnyMoment when Judy reads it aloud and says Cleopatra would be better-- and decides to instead figure out how to celebrate in private. Doug gets a private tree, bakes clay earrings for Patty that she loves

* In a later episode, Judy and Doug get in a sibling feud about how they want Dirtbike to grow up, with each fearing she'll either be a comic nerd or a Shakespeare expert. Then Dirtbike [[AdultFear gets locked in the Dinks' house with Doug and Judy having no way to get inside]] until Doug trips the alarm on purpose. Afterward, they both admit their pettiness endangered their little sister and they decide to compromise. Judy will let Dirtbike play as "Quailgirl" and Doug lets her read Shakespeare. Then Porkchop starts teaching her how to dance.

** When Doug realizes the house is empty, his dad takes him to the hospital. His mom then shows him a newborn, saying her name is Cleopatra Dirtbike Funny, from the names that her kids gave her. Judy and Doug faint immediately from joy, and from knowing they named their baby sister. Afterward, Doug affectionately calls his little sister Dirtbike.
** Patty at the post-Christmas party tells Doug he forgot to open his present from her! He does and finds out she handknitted a scarf. When Patty apologies for it being lopsided, Doug tells her it's perfect and puts it on to go get baby food for Dirtbike.

* "Doug's Secret Admirer" features a sweet little FriendshipMoment between Doug and Beebe after Doug finds out that she ''isn't'' really his secret admirer. At first she's embarrassed by the realization that she was putting her notes in the wrong locker, but then overjoyed when she realizes that her ''actual'' crush never got them and thus wasn't ignoring her on purpose--so much so that she gives Doug a little kiss on the nose, which also happens to have been Doug's ''first'' kiss. The two then agree that they're BetterAsFriends and Doug asks Beebe who the guy she was really writing the letters to was. [[spoiler:Turns out it was Skeeter]].

* "Doug's Christmas Story" is one huge example. Considering the Christmas time frame, it had the potential to be a CrowningMomentOfHeartwarming by default. Of course, this gets subverted when Porkchop is accused of attacking Beebee and taken to the pound (with the Blufffs threatening to have him put to sleep, no less). But the lengths Doug goes to in order to get his dog back, plus the RousingSpeech he makes in the courtroom, double subvert the trope and push the episode right back into heartwarming territory.

* In "Doug Graduates", Mrs. Wingo pulls Doug aside in the hallway when she didn't see him in class, just so she could have a chance to say goodbye. She then starts to get a little emotional as she mentions how it's hard for her to see her students grow up and leave. It's touching to see how she has been teaching for decades ("Doug's Doodle" reveals that she's taught the parents of several of her current students), and seeing them grow up still gets to her.

* In "Doug's Doodle", Doug spends the whole episode fretting that he'll get in trouble when Mrs. Wingo discovers the unflattering doodle he drew of her (which he accidentally put with his homework when it was being collected to be turned in) and tries to scheme in order to get it back. After she does discover it, it seems as though she's going to punish him...but instead, she shows him a portfolio she put together of doodles and drawings of herself made by former students, revealing that she likes to keep them there to remember her students after they leave and asking Doug to sign his so she can put it in as well, which he happily obliges. And ''then'' she punishes him, but it's not a particularly harsh punishment and Doug accepts it gracefully.

* WordOfGod says that, while Doug and Patti don't get together in the end, Doug will at some point have an unnamed female friend that he bares his soul to about Patti -- and in the end, realize that she's the one.

** Patti's friends have joined together to be bridesmaids and groomsmen in the wedding.

** Doug ends the series by telling the viewers, "So long, everybody. It's been fun. Your friend forever, Doug".

* In "Doug's Mail Order Mania", Doug enters a contest that lured him in with a sweet grand prize, but every round requires an increasingly-high amount of money to continue, to the point where he very nearly spends his college savings bond on it. Meanwhile, Doug is also making a sculpture of Porkchop to enter an unrelated art competition, but all his efforts go into the first contest even though it's quite obviously a scam. Eventually he gives up and is bummed out about it, but then he receives a letter in the mail saying his sculpture came in third place in the art contest, which confuses him since he had forgotten all about it. That's when Judy reveals that ''she'' submitted the sculpture for him and reminds him not to lose sight of his talents.

** As it turns out, Stinky is female and her being "sick" was actually a sign that she was pregnant: she ends up giving birth to a litter of kittens. As it turns out, the pizza and ice cream that Doug gave Stinky was just what the doctor ordered.

* "Doug's Fat Cat" is one of the most heartwarming episodes of the whole series. Roger asks Doug to take care of his pet cat, Stinky, while he and his mom go to a monster truck show. Despite picking on him all the time, Roger trusts Doug and considers him a good person.
** When Roger and his mom drive up, Roger's mom greets Doug warmly, and he warmly greets her in return. Roger may be a bully, but he at least has a happy home life.

** Roger and his mom immediately come to the vet after Doug tells them that Stinky is sick. Roger had earlier said that he'd been looking forward to the show all year, but he didn't need to think twice about leaving to make sure his cat was okay.
** When Roger arrives at the vet, Doug is terrified that Roger is going to be furious at him, but instead Roger just asks him what's wrong with his cat, even collapsing to his knees in worry and crying.

** Right before he and his mom drive off, Roger, without a hint of sarcasm or insincerity, tells Doug that he's counting on him. Even Doug is taken aback by how much Roger cares for his cat.

** Despite Doug's initial worries, Stinky isn't that troublesome for him, despite mewling at odd hours.
** After Doug gives in to Stinky's demands and gives the cat pizza and ice cream, Stinky smiles at him, genuinely satisfied and grateful.

* "Doug's Fat Cat" is one of the most heartwarming episodes of the whole series. Roger asks Doug to take care of his pet cat, Stinky, while he and his mom go to a monster truck show. The fact that Roger trusts Doug to take care of his cat shows that Roger knows how good of a guy Doug really is.