Right, the fact that some of the examples aren't even labourers, but just anyone showing their arse crack suggests that it really isn't a trope. For pity's sake, I forget to pull my pants up half the time, too, but I wouldn't say it's a trope. It could also present some Unfortunate Implications
that labourers can't afford fitting trousers or are forgetful.
however.... Plumbers/builders show their arse crack? Only thing I could see to make of it would be maybe aversions when someone who lives there walks in and starts talking to the plumber like they're a parent/ friend/ at least acquaintance because they are just bent over, not showing a crack, and then discover they're actually the plumber/ whatever... maybe. Actually, no, not really.
I say toss it, or if not really possible, make it clear that it's a Played for Laughs
Stereotyping Trope, and clean it up.
edited 21st Jun '14 1:15:28 PM by lakingsif