One point, on behalf of the fatbros like me out there: if you're only just getting into exercise or weights, they might well be crashing the weights or grunting because they're actually putting all the effort they can into it. I grunt like a pig, and I'm forever apologising to either my trainer or people around for doing that - but they've all said it's not an issue...
Remissas, discite, vivet.
God save us from people who mean well. -storm