Today while doing a short session of yard work with my lab my ecollar malfunctioned. When I hit the nick button it felt like a bolt of lightning going into my hand. The transmitter shocked the $#!+ out of me! Yes transmitter not reciever. The shock wasnt a short nick, it kept putting the voltage to me until I dropped it. Now I know what the dog receives! When I looked at the transmitter the unit had turned its self off and was hot to the touch. I was able to turn it back on but it shut off shortly there after. Showed that it was fully charged. It is a Dogtra 7100H sure stim. Any one have this happen before or knows what is going on? Unit is less than a year old. Thanks for your help.