No ALLCAPS, no bold, and no italics unless it's the title of a work. We are not yelling the DMoSs out loud.
Demetrios: For many fans, the short but strenuous time in 2006 when Garfield started its over-reliance on the title character ending each strip with "We're bachelors, baby!" Sure it was funny the first couple of times, but after an entire week, well, it's an Overused Running Gag.
timmyturner98: The "we're bachelors baby" line doesn't even make sense now because Jon is successfully dating Liz now. Speaking of which, there are quite a few fans that say Jon finally getting a girlfriend was the start of Garfield's downhill turn.
AnarchyBalsac: Garfield had the infamous strips from 1989 where Garfield is shown to be in an empty, long abandoned house. It was supposed to be a Halloween scare, but it ended up being an Inferred Holocaust of the worst kind. It's resolved with Garfield willing himself back to reality, which, for good reason, has spawned Wild Mass Guessing that Garfield is imagining the events of the strip while he slowly starves to death in an empty house. Word Of God states this isn't true, yet no full explanation as to what happened, or if it is even canon has come forth.
tvtroper98: For me, thisGarfield strip. To explain, Garfield is walking around the room, when he hears a message on Jon's answering machine. It's a hot cheerleader who Jon met at a pizza parlor, saying that she can't stop thinking about him and her phone number. Garfield then destroys the machine. Why? Because of the fact that Jon had pizza without him. Now, Jon is a Butt Monkey, especially when it comes to dating, but this strip is so cruel to Jon, subverting Throw the Dog a Bone so hard, it could almost be a Tear Jerker moment. At least Jon and Liz are an Official Couple now.
TheSnowSquirrel: I hate a similar strip that involves Garfield eating when the phone rings. He picks it up and it turns out to be Jon's date asking what time he'll pick her up. Garfield simply lets out a huge burp into the receiver. Last panel we see Jon singing to himself "Got a date with an angel," while the Jerk Ass of a cat walks by smiling saying "Not anymore!"
kablammin45: For me, it's this Garfieldright here, Jon says he's worried about not being good enough for Liz. Garfield responds: "Haha, Oh come on Jon, Might?" Yes, Garfield has a tendency to be a pain to Jon, but his answer is just a little too mean, even for Garfield.
Mic1988: In one of the early strips it shows Jon and Garfield on a bench in the park when a couple walks by, Garfield whistles at the lady causing the man to threaten Jon who claims he didn't do anything. They go to leave when Garfield again whistles causing Jon to get beaten up despite him claiming he didn't do it while Garfield looks on smiling! Then when they leave and Jon's beaten up another couple walks by and Garfield whistles again! Frankly the fat blob deserves any kind of bad things Jon does to him after that!
Midna: It's not for Garfield being a jerkass or anything, but the comic for February 26, 2010◊ has got to be one of the least funny the strip has ever done. Garfield is playing a video game, and it plays music and tells him that he's "saved the princess". And... that's it. That's literally it. That's the entire punchline. This was apparently part of a week-long arc where Jon becomes frustrated with a game he's playing, only to become even more exasperated when he discovers that even his pets (even Odie) can beat it. In that context it is kind of amusing, but I'm still putting it here because, read on its own outside of a print collection that could provide context, it just looks like the punchline is supposed to be "Ha ha, video games exist!"
Drcynic24: For me, it was the complete disappearance of Lyman after 1983 with no explanation. That's when the comics slowly began losing steam to me until the mid-90s when they became virtually unbearable.