When I was in highschool sewing class, that happen to my girlfriend. she sat behind me and started saying ow ow. I turned around she had the needle thru her finger. I started laughing don't know why, then I passed out. So the school nurse brings down the wheelchair and neither one of us wanted to sit in it very uncool in highschool lol. so her and I are argueing who has to sit in it. because I fainted I had to go to nurses office too. Needless to say the chair went back empty.