Either "the mushrooms tell the bug to bug off" or the Drifloon entries saying it steals children but hates fat kids.
>>54349006No, they mention it in passing in Gen 4 regarding mulch ingreedients and Guzzlord's remarks it's the only pokémon observed to not leave scat. And there's a further side quest in Gen 7 where you clean up pokémon shit and feed it to a grimer.