It really isn't mean at all. Just a little bit gross. (depending on your preferences) Why do you think drinking Listerine is so humorous?
Tell your friend he can get high off sprite and bananas. http://www.totse.com/en/bad_ideas/irresponsible_activities/bananasandspri179450.html
wow idk about this but pure potassium will explode the second it reacts with water. but isn't in that state in bananas.
lol... is it weird that i really want to try that now to see what it feels like? too bad i don't have any sprite...
ahahaha totse is the best website on earth. i can entertain myself for hours reading the ridiculous shit some people post on there. and the erotic section of that sight is so priceless, it really is just so hilarious