Did I tell you I think he's a sneaky fat pig?
Why would you say something like that about someone?
He was wondering how come he lost his wallet
You should know that calling someone a "pig" is terribly insulting and disgusting. He does not deserve to be called names and belittled because he misplaced something, you need to apologize.
If he can't even keep track of his wallet, I think it's okay to call him that.
No one's perfect. People make mistakes. Sometimes when we overreact, it's because we're projecting how we feel about ourselves.