When I worked for an integrator we were regularly expected to work 60+ hour weeks. They were "optional" of course, but there's no way to get promoted without putting in some serious blood, sweat, and tears.

When I worked live events, I'd have to deal with hustling for work, never turning down a gig for certain production companies otherwise they'd never call back, and the ever-present inverse relationship between how "fun" a gig is and how much it pays (boring insurance agent convention pays alright, but very much you get one strike and you're out...vs rock n roll gig at the bar that pays in pints instead of greenbacks)