My buddy once spent an evening out with a mutual female friend of ours. My buddy is a solid 3 and she's easily a 9. They hung out, had dinner, talked, and such. He drove her home afterward. As she left the car, she invited him up for coffee. He politely declined. "Are you sure?", she said. "Yeah, it's getting late, and coffee will keep me up all night.", he replied. "Are you really sure?" "Yeah, I am. But thank you." She smiled and said, "ok, be careful getting home." It wasn't until he was home that he realized his mistake.