haha ive done that before. it was a little stupid though. it was only hlaf of a waterbottle, and the hits werent as hard, and i had to keep running to the window to exhale cuz my parents are fucking dicks and my sister, who i might add is 21 years old and needs a life of her own, was in the next room. but i got high from that, so i guess in the end it worked out after all.