One of my co workers did exactly that while up in an attic of a hospital on a hot summer day pulling telephone cable. he reached up to the old brass hanging fixture to turn on or off the light while his sweaty leg was pressed up against the HVAC duct. Well the HVAC duct just happened to be grounded pretty well, which many of them are. AND the person that had wired the lamp socket (made of brass) had wire it backward, which put the hot on the brass outer part and the Neutral on the center tab. It had likely been like that for 40 or 50 years. No one had ever noticed before. Likely because they never came in contact with the HVAC duct or it wasn't there before or whatever. BUT Danny found it and could not get off of it because he was covered in sweat and with just the 120 volts which if you are nice and dry will just give you a nasty jolt, this time was burning a hole in Danny's finger and he could not turn loose. Another coworker got him loose, and they took him to the hospital, ER which was real easy, since that was just down the hallway. His heart seemed to be OK, but he sure had a mess of a finger. They packed it with something and bandaged it up. It was a mess even weeks later. It did heal up but it wasn't real quick. Needless to say, the hospital payed all of his bill's including follow up. He did not sue.
