Two. One to change it and one to yell "Ta-daa!" when he's done.
None. Their parents will do it for them.
Just one, but doing it will make them think they're going to be an electrician in the future.
Just one, but it takes him 20 episodes.
None. It will change when the fire nation attacks
Because he said Punch's line.
Both are yelling at the same kid.
An acrobat.
