Why I unbuckle my seatbelt
I am SLF in cattle-class. I obey the seatbelt sign. When seated, I buckle up. But when I have to use a lavatory I unbuckle. And on a long haul flight there are times when I have NO CHOICE but to queue up and wait in line (OK, I could p1ss in my seat, but what would CC say to that?). 44 out of 300? Say 15 queuing for the loos, plus one more for each loo, plus the mother walking to settle her baby, plus the lotharios permanently parked in the galleys trying to chat up the CC (M or F) or just wanting a drink refill, plus the CC themselves, plus the few getting their passport out of the overhead to write on yet another form, plus ...
Yeah, 44 or 50, easy, if the sign was off, and not one of them doing a 'stupid' thing.