My T was 15 mins late once..i was very pissed..but kept it cool...after few sessions he was 10 mins. late..i let it slide again...then after few sessions he was 9 mins late...when he came to get me..i let him know i was about to leave.
i get it ..his time is important ...so is mine!
i am already there...anxious..looking at the clock...second by second..waiting for him...and imagine 5 whole mins. pass..it lets me down...and i stop caring..like whatever...
but i have made it a rule.i will only wait 10 mins MAX. and leave if he doesnt come.

hasnt happened yet. and hopefully he wont charge the insurance for a no show.