Well I am guessing this went down in club paradox (paul franks common roll in that area). Anyway rolling is a trip whether anyone wants to realize it or not, so you can have a bad roll and some people just don't like doing it, its an intense drug. My friend had the same thing at a rave of one roll, about a month later he tried again and had a great time, ecstasy is an intense drug it can hit you in the face if your not ready.
haha wow it was at paradox!