ouchy whole bottle. a guy i was with a few months ago at a party did that. the result was humorous. and frightening seeing as he's like 17 and he mixed as well, but he didn't throw up which was quite an ackomplishment. my dad at his 50th was the worst- 2 litres neat vodka, as well as some glasses of wine. now THAT wasn't pretty.
i'm wondering if the tequilla disaster was any better.....hmm.......no wait that was worse :S