If you said something wrong:
Oh... you didn't really listen, did you? Maybe that stroking is too much for you. Then stop stroking and listen. This is not just fun and games, you have to know the basics or you'll make a bad impression with Malena. It's 0-2 lessons a day with 4 hours rest in between them minimum. (Don't stroke during her explanations on the following pages)
If you were correct (0-2 lessons a day with 4 hours rest in between them minimum):
Right. Keep stroking. I love it when you do that.
So if you can't complete a lesson in one sitting, you'll have to try again later, but again you'll have to leave campus for at least 4 hours. And you'll start that lesson again from the beginning of course. You can come back later, like a day later or two if you need the rest or have other stuff to do. But you know... there's a catch. You'll have to leave the keys to your chastity belt with us. That way, we know for sure you'll come back. That's also what this little hole in the middle of the seperator is for: We can pass the key to each other through it.
Of course you can still leave the program, but you'll have to come back here and officially quit so the teachers can be reassigned. This is always a huge disappointment to us though and that's why there's all these tests beforehand.