i was making a white prom dress for pollly, my best friend. i sat there, looked at the needle going through my pointer finger and into the machine, and thought "oh no, blood on a white dress " and yanked with all my might. no blood on the dress. no flesh inside my fingertip.no food left inside my stomach. no quiet for at least 5 minutes. had never had pain like that! never want to again. forget waterboarding-- this would work on anyone! i've hit my knuckle once or twice since then but my permanently dented fingertip is no where near that pesky needle!!!