Construction work is serious stuff, injuries happen all the time and safety awareness is key.  That being said, an occasional prank is a fun way to bring some levity to the job site, especially when you get a great reaction from your coworker.  Last year, we shared a video of a couple construction workers pranking an unsuspecting newcomer by making him swing a sledge hammer in a circle for several minutes to test a seismic reading, which you can watch here.  

The video below is from carpenter Jason Wolfe, who tricks his cowoker, Tyler, into think he had shot a staple straight though his finger.