Sparksalot, my sources tell me that 2 to 10 mA is enough to cause muscular contraction, and 5 to 25 mA causes a painful shock and inability to let go. Obviously, it all depends on skin resistance. If you are sweating you will get nailed worse. Gfci's were set up to trip around 5mA because any more than that could cause someone to get killed. Sure, ventricular fibrillation occurs around 50mA, but prople can get killed at lower currents because of the muscular contractions and the "lock on" effect, and falls or cuts resulting from such effects can cause someone to be killed.
