Well, I don't know if they all fall asleep, but I sure do. When I do feel sleepy, I can usually get away with making a bunch of moaning noises and the pervs hang on for many many minutes. Last night, I didn't realize I was feeling sleepy until I was moaning and moaning for a perv. He kept pleading with me to tell him what turns me on and what I was into. I woke myself up when I heard myself tell him that I wanted to cut his hair. What?!?! I want to cut your hair??? He was all "OH, does that turn you on?" I couldn't think of anyway to make that sound sexy, so I returned to moaning. He finally hung up after 21 minutes.