Sirius spreading a rumour that he has a cat just so when people ask him about it he can go, “Nah, I’m a dog person.”

Peter being loud so when a teacher chews him out, he can promise to be “quiet as a mouse”

Remus turning into a fucking werewolf

James and Lily and Peter discussing the fidelius charm. “Something doesn’t feel right,” says Lily. “I smell a rat.”

"Sorry," says Peter. "I had beans for lunch."