Amber Jezebel
I did both a private and a super inexpensive group show, and while neither cost a lot of money, save your credits as far as privates go.
For a 10 minute group show, she "finished" in 2 minutes and just laid there the rest of the time. Similarly for the private, when she didn't feel like doing anymore, she just stopped.
She's not much of a conversationalist, so what else is there to during a show except leave. That's right, a 10 minute group show and I left with more than 5 minutes remaining because she said she finished.