Staying over 5-10 minutes...I get that.
Staying over a half hour and not paying...That's taking the piss.
For all you guys saying she should have told him he owed her her 90 minute rate...We shouldn't have to tell you when you owe us money. Are you just fucking idiots too lazy to realise you've stayed way longer than what you booked? He stayed 90 minutes, not an hour, but 90 minutes, that's the bottom line. You pay for time, so at the end of the day there shouldn't have to be any awkward conversations from either party, regardless of the initial length the booking was made for, if you stay 30 min, 1hr, 2hrs longer, you should pay for it. If you go to pay for staying longer and the provider tells you not to worry about it, then that's on her, but the offer should always be made. It is never fair or a good idea to assume because one is not labeled a 'clock watcher', that it will be acceptable for you to take advantage of that fact by staying over your allotted time and then trying to justify not paying because she wasn't meant to be a 'clock watcher'.
You stay 1 hour=You pay for an hour
You stay 90 minutes=You pay for 90 minutes
You stay 2 hours=You pay for 2 hours
It really is that fucking simple. Jesus Christ.