[RacerBill]

I don't get why you can't do the step-ups on the bench. Leaving a footprint is somehow worse than leaving it coated in slimy sweat?

No matter what I use the bench for, I use the paper towels and disinfectant spray.

I'd have to question if this is a genuine rule or if you just had some irritated staff member who felt like yelling at you. If you treat the equipment properly and clean off the bench after doing step ups, I don't see any problem.