Care home work. Management have said that if you leave even seconds before your shift scheduled end, your wages will be docked by 20 minutes.
I calculated and this takes salaries to below NMW because we're only paid 4p an hour above min wage to start with. It works out as 11 something an hour with the 20 minutes docked.
Also, if you have to stay later which happens 99% of the time you are never paid for it. I pretty much always get out 5 or 10 mins late, asked if we could be paid for this and was told no.