Hmm I've never had problems with puking and E. Doing this however http://www.youtube.com/watch?v=-Z9SzTsAzFI caused me to do a lot of puking. But yea, a friend of mine throws up everytime hes taken it and it hasn't been that many times, but we have a garbage can in my basement and he usually goes in that. Then after he starts to roll we convince him to go throw it away outside in the freezing winter weather. Ahh classic