When I take a bathroom light fixture down, I still need light, so I often use an elastic hairband to hang an extension cord with a light bulb from the exhaust fan or air vent. That’s what you see in the photo, a close up. Well, I was working on the strip over the door and my chin bumped into the extension cord. ZAP!! So what you’re also looking at in the photo is a section of extension cord that got frayed or, from the looks of it, maybe melted by my heat gun nozzle being placed on it somehow. However it happened, enough of the copper wire was exposed to give me a resounding shock! Luckily I didn’t drop anything or mess up the strip of wallpaper I was working on. An unexpected but good reason to carry electrical tape in my toolbox .Here’s the patched wire. As you can see, it’s not the first repair this cord has seen. wallpaper installer houston