Reports are done daily like in the UK.
And yes, when you start working in Union houses, yes, you shouldn't being doing their job, but to be honest, you might be working in a theater where you are not bound by IATSE stage hand rules, and your jumping in and sweeping the floor, although technically not your job, speaks volumes about your who you are. Yeah, I would always ask before I would do it, but it sort of depends on the level you are on.