American Psycho Easter Egg - Money for a Cat

In the level Duke Nukem's Titty Club there are 3 ZZMONEYS ATM machines located around the club that when activated all say "OUT OF ORDER." But when activated a 2nd time each machine will say "FEED ME A STRAY CAT," which is a reference to the movie American Psycho where Christian Bale, who plays Patrick Bateman - a serial killer and son of a wealthy Wall Street financier, is pursuing his own lucrative career with his father's firm. In the movie, Bateman, while in the Wall Street bank, finds a stray cat after turning on an ATM machine to withdraw money. He picks up the cat and pets it, and when he looks up at the machine screen it says "FEED ME A STRAY CAT." Bateman then violently proceeds to stuff the cat through the money withdraw slit on the machine.