Even NASA engineers need some time away from work, including former NASA engineer and inventor Mark Rober. So, he decided to build the world’s largest functional NERF gun with friends Ryan and David of Eclectical Engineering. It boasts a wooden frame and utilizes a modified paintball tank to propel custom pool noodle / plunger darts. These projectiles exit the chamber at 40mph, which means it’s something you don’t want to mess with. Click here to view the first image in this week’s funny work pictures gallery. Continue reading for a viral video showing what happens when an electrified powerline meets swing set.