It has happened to me exactly one time and I still get flashbacks to it. I drank almost a full bottle of whiskey and had smoked like 5 joints and I just couldn't get it up. It fucking sucked so bad. 19 year old, incredibly sexy Italian girl. Her name was Alice, I actually really liked her and so it made it even worse. I was like 25, had this girl on top of me playing with a dead worm. She had a perfect body too. She didn't make a big deal out of it and I stayed the night, but my god, that was fucking terrible. I tried to get a round in before school (we were at uni together), but it was too awkward. Man, my face gets all flushed and red just thinking about it. We stopped hanging out after that. Worst, most humiliating fucking thing. Anyhow, has only happened once and it was just a case of being way to fucked up. Such is life... I still have this fantasy where I meet up with her again and give her the shagging she deserves. Oh well.