He was a watchdog and needed winding.
A person who stays up all night wondering if there is a dog!
A chair
Mosqui-toes.
Because it was charged with battery.
Vin Diesel!
They're both run by Unix.
Stop going in circles and get to the point.
Because it's harder to run in squares.
They have big fans.
It was wound up already.
A terrified postman.
Because he's the watchdog and he has to wind himself up.