Because he has 3 dead parents and Bruce only has 2
Because they push 2 twins together to make a king.
Because they can only count to 3.
Batman!
Because of Christian Bail
He couldn't find 3 wise men and a virgin.
Humphrey. (I was told this joke by an actual dad, it was his response to one of my jokes)
The first one saves people from criminals, while the latter saves criminals from the people.
He decided he wanted to date someone in the same League.
Penny Bruce