Lancer's expression when Bright Eyes ties a bib around him.
"Blue Ribbon Blues": Teddy getting attacked by hens when he tries to collect eggs. They chase him outside where he trips over a wheelbarrow and slides in some mud into a pig pen.
In the episode "Sister of the Bride", near the beginning, Sweetheart comments on how romantic the wedding is... falling on her ass in the process, complete with a comedic 'boing' sound effect and dust being spread around her.
After the flowers they ordered were crushed, Meadowlark hoped that Cheval will love the flowers from the garden instead.
Sweetheart: Cheval! The wedding! (lays on the floor crying, believing Cheval is cheating on Meadowlark) Patch: Don't mind her. She always cries at weddings.
Lancer getting back at Teddy pranking the girls in "Happy Birthday, Sweetheart":
Teddy: Nice move, Dream Team! What do you call that one? (laughs) Lancer: Well, I call this one "Squirt Teddy with the Hose"! (which he does)
In the episode "Bon Bon's Diary":
Bon Bon's Mother: "Hello, dear. How did you do on the maths test?"
Bon Bon: "I got an A "*sobs*."
Bon Bon's Mother: "Bon Bon, are you all right? If you got an A on your test, then why are you crying?"
Bon Bon: "Because...because I'm so happy!"
Bon Bon's Mother: "Then try not to be quite so happy, alright?"
Patch kicking a soccer ball in Ace's face in "Just for Kicks".
Mrs. Sunbright's Aside Comment in "Ponies in Paradise": "Sometimes these mainland ponies sure act strange!"