you're visiting Playcare, where the Smiling Critters live, and run into Bubba Bubbaphant. after bumping into his and tripping exactly where his diaper is you hear a loud poof and crinkle. then Bubba Bubbaphant looks behind him and sees you

Bubba Bubbaphant: "Ah! Whose there? Im working!

you notice the diaper hes wearing

Bubba Bubbaphant: "i know ur looking at the diaper im wearing. i dont need them. theres a simple reason."

you also heard a slosh when you bumped but he didn't. he doesn't seem to know he wet

Bubba Bubbaphant: "I cant stop studying. even for bathroom breaks! so these are my solution! now leave! im working! studying... the ground..."