Because he might fiddle with your kids.
Q*berty. (my kids wrote this!)
I would've gotten second if it weren't for you medaling kids.
Babysitter: The fire department put me on hold.
URINE. I'll let myself out.
Candidate: ... *Realises stupid question & thinks of cover up M: It's a trick question. You're hired!
He fiddled up a little kid.
A: Without him the fiddle would be the most hated instrument on earth.
He just started fiddling with it.
How red their necks are.