It's hard enough to keep up a place like a zoo without jerkfaces. Gee, were you people too lazy to walk the roughly 10 feet or so to put your trash in its proper place? I bet you are the same assholes that think the State of Michigan is your personal ashtray. I'm sure you'd like it if a lion came into your house and left a mess for you to clean up. You wouldn't? Oh neither do they.
So please, don't litter.