I thought I'd left this all behind with my last job where I'd only get paid for staying late if it was by half an hour, but apparently not!
I work in a call centre and all day has been non stop calls! I manage to finish up my last call at 7:59pm so finish off writing my notes (not in a great hurry) and log off at 8 (when we close!)
I'm in the great battle of throwing all my stuff together so I can run for the bus which is due at 8:06 and the supervisor comes running over to me and 2 other people and tells us we have to answer all the callsleft in the line 
Obviously it's shit that people have waited for ages but I'm not paid to work past 8! If I do get out late because I'm already on a call then I can live with that, but to be expected to stay until all the calls are gone when I'm not paid for it? And when it means I will miss my bus and have to wait for the next one at 8:36 in the freezing cold?! Pfft!
Luckily by the time I had managed to log back in there were no more calls and I just managed to catch the bus, but if my DP wasn't home looking after DD and I had missed the bus, I would have been 30 minutes later than agreed for our babysitter 
I probably am BU but I'm going to stew over this and curse call centres and my decision to work in one!