do it if you're bad

something you say to someone to egg them on to make them take a stupid, reckless or otherwise dangerous choice.

Horace: I'm thinking about shaving all my hair off.
Alistair: Do it if you're bad.

Do it if you're bad

A saying used to encourage someone to do something that is stupid, reckless or otherwise dangerous.

Matt: I'm going to fart in my teacher's face.
David: Do it if you're bad

you're doing fine

Doing OK.

Sha la la Joseph, you're doing fine