My dad hooked an old 18 wheeler's horn up to his Pinto station wagon, and when you honked it the headlights would basically dim off. But damn was it loud. The dumb bastard in this video specializes in mounting train horns to cars so you can go out and honk so loud people crap their pants. Based on the video I would say several people got a case of the ookey dookies that day. Now I don't promote this kind of behavior. I'm confident these guys are penis-less jackasses. But that's because they use this horn for evil. I'm mature enough to only use it for good, like getting jerks off their cell phones while driving. I'm practically a superhero.
Train horn on a car - Havoc on the streets [newlaunches]