One evening, a man goes home after an unsuccessful night looking for action in the local bar. Next night, he rushes in and tell his friend "You'll never guess what! On the way home last night, I found a woman tied up on the train tracks. So I untied her, took her home, and had sex with her nearly every way imaginable." And he starts describing to his friend what he did. His friend asks, "Did you get a blow job?" "No," said the guy, "I couldn't find her head."