Stupidity: Batman should've noticed the pink pants the bat creature wore when it attacked him in the zoo thus showing it wasn't Kirk Langstrom. He's noticed things in other fights.
Suggested correction: Are you suggesting Kirk couldn't change his pants?
Well it'd seem ridiculous given his changes probably happen at any time like The Lizard's who also never changes pants.
So Kurt Conners and Kirk Langstrom both wear the same pants for the rest of their lives? They never change clothes when in human form?