Please note that this is no mere TRAP Batman is walking into. Nosiree, it's a MAN-TRAP! The narrative box says so.
Getting whacked in the back of the head with a blackjack is bad enough, but then there's that guy going for Batman's crotch --
er -- belt!
I guess Hal (Green Lantern) Jordan ISN'T the only super-hero to have that sort of problem with bad guys.