It wasn't me...

Daddy: have you been a good boy today Jamie ?

Jamie: I've mostly been a good boy, but I've been a bit naughty too.

Daddy: why were you naughty?

Jamie: I was naughty being mean to my sister

walks off with head down

5 minutes later, re-enters room looking considerably cheerier

Jamie: it wasn't me being naughty to my sister!

Daddy: wasn't it?

Jamie: no! It was MY HANDS! They wanted to be mean to maddy, so they just did it. I couldn't help it, I was being good and then my hands started being mean