I've come (no pun intended) quite close to an orgasm and messing my pants all over while awake, an not fondling myself at all. Just the thoughts alone. The dirty, dirty thoughts, of which I'd probably be ashamed if I was a normal person.
I think I was probably for a few weeks on "celibacy" too (no sexy times, not even the self-inflicted type).
Also, in honor of digtastik: