Some restaurants take advantage of the fact that waiters only make 2 bucks an hour by piling on all kinds of extra sidework. Depending on how close it was to time to pay rent or how tight the job market was, I might put up with it for a while, but I usually wound up refusing, or just quitting. A lot of what determined if what was being asked of me was excessive depended on how much money I was making, the size of the business and how well they treated me.
I worked for a hotel that had, of course, a full housekeeping staff that regularly cleaned the community areas of the hotel, bar and restaurant until management decided they needed to cut back on labor costs. They cut the hours of the housekeeping department and made the waiters do the work at the end of our shift. Not only did the waiters not like cleaning for 2 bucks an hour, we didn't want to take hours away from our friends in housekeeping, so we made sure we did a really crappy job of it. The vacuum cleaner was always mysteriously breaking and we were forever losing the brass polish . . . Once, my friend Jill and I got busted for just leaving the vacuum cleaner running in the middle of the restaurant while we went to the break room to have a cigarette. The manager's office was in a little broom closet around the corner, and we figured so long as she heard the vacuum running, she'd never check to see if the floor was clean. I still think it would have worked, but we didn't count on her needing to use the restroom.