I'm real sick of people my age and older acting like helpless babies. Get sone napkins are get to wiping

Had some couple around my age basically jump on me as i was leaving the bathroom on my break yelling at me about dirty tables. I told them im off the clock. (My mashed potatoes were waiting for me). The lady was like well get someone then. I was thinking to myself get some napkins and brush the crumbs off lazy. I told her it's illegal to work off the clock but ok.... i begrudgingly got someone to do it.