I had a friend who worked at Task Force Tips (fire fighting equipment) while in college. He brought home a tip to use an a prop in a speech in school. He and the guy riding with him were worn out from work, school, work and school with little sleep. The other guy was making believe he was blowing away cars and trucks pointing the tip at them and making explosion sounds. All of a sudden red and blue lights came on all around them and when they were pulled over they were surrounded by cars full of officers with guns drawn. A voice came over the loud speaker saying "Put your hands out the windows and do not touch the weapon".