Ah the fun with electricity. We once made a telsa coil in school....during our exhibition of the project, my friend accidentaly touched it when it was turned on, and i was touching him so we both ended up with very tingly numbness for several hours.
You ever see those little soldering kits for learning the basics? Well on the Strength tester kit (you touch 2 fingers to metal terminal plates and can set between a strong or weak setting. Well I (accidentaly actually) used much weaker resistors than was called for. The weakest setting was a bit stronger than the strongest of my partners who built in correctly. The strongest setting on mine was strong enough to be really painfull in not prepared for it. We used to set mine on low then raise the power and see how long we could manage to hold on beofre the pain was too much.
This actually was the start of my toying with electro shock fun
Now fastforward 3 years to 1 year ago. Dog training collars = Fun. Take turns hooking them around friends necks or thighs and let the shocking begin. Drunk this is even more fun. Again competing for who can be shocked the longest is always great.
Fast forward again to couple months ago. We watched The Jack##$ movie and we watched the bit with the muscle stimulator with gleeful laughs. Wouldn't you know it the house we had the lan at thatt night just happened to have one of these things. We were all half drunk so we ended up spending about 2 hours shocking various parts of our bodies to numbness.
Now unintentional shocks i've gotten in plenty. Testing small engines (lawnmowers, My uber go-kart, snowblowers. ect. ect) for spark can be a quite shocking experience. Psu, Monitor, and Tv repair can be very painful. And the one incident where we shot model rockets with thin wires on them during a lightning storm well that was by far the coolest and stupidest thing we've ever done. (by the way lightning most definately can strike twice in the same spot)