CE, i'm thinking this may be a good lesson for you...kinda like the ones i'm continually learning, lol. Maybe you could touch on this in your policies. I'm guessing kfisherx's trainer had this outlined in his. If you don't have a policies sheet typed up, it may not be a bad idea. Cite this kinda thing as grounds for termination of the business arrangement. From the get-go it may help people see you're not there to mess around, and it could help in weeding out the "bad apples."
Perrogrande's idea isn't a bad one at all..that's a viable route, or suddenly becoming "too busy" and having to switch times...to something horrendously early, such as 3am, lol! See what he says then.
Lost Dog - thanks, man!

I'm not going anywhere! I feel I was a bit defensive and mrrrrrrrrrowwww'ish (catty, lol) at first but it was mainly to show that my claws occasionally come out if need be. My impression of this place is only a good one...and I don't see it as a place where people would throw out easy punches for the sake of knockin' other people down. I'm happy to be here!