in my 3rd period class we were sitting in a corner studding. one of my friends was sticking one end of a paper clip into the the socket and getting zapped. after about the 5th time it did not work anymore. so he stuck a end into each socket and bam! the socket started to sound like a bunch of firecrackers going off.(not quite as loud) and sparks were flying out of the socket right in front of my face. he got in alot of trouble.