JMS Hockey

At St Thomas last night for the Lower Level skate scheduled from 9:45-11:15, the rink attendant ended our session at 11:10. Apparently his reasoning was that we took the ice early. Even so, ice is booked until 11:15. Is it our fault the ice was ready early? What if not everyone was present to be on the ice earlier? Coincidentally, 11:10 was also when the 3rd period of the Wild game ended. I suspect the attendant didn't want to miss any of the OT