Ouch!!
try stabbing yourself with a screwdriver like i did at work a bit over a year ago. Was pushing on something with the screwdriver and it slipped... went STRAIGHT THROUGH the ring finger on my left hand.. now THAT hurt!! Not good coz I am a guitarist!! had to be taken to hospital, apparently pulling the screwdriver out straight away (like i did) was the worst thing i could've done according to the doctors. Healed up well though, hardly any scars at all.