Two stories...
First was when I was teaching middle school PE. I had all the males and they changed clothes in the football locker room. This one sixth grader got dressed first and was looking at some of the odds and ends in the football players' lockers. He happened to spy a plastic cup (that fit in an athletic supporter) and quizzically picked it up to see what it was. After a couple of seconds of looking it over (and he clearly had no idea what it was), he put it over his nose and mouth, like an oxygen mask! Unfortunately for him, the other kids saw it and went wild. He caught the devil for the rest of the semester. I had to work hard to keep a straight face as I explained to him what it was exactly!
Second was at an American Legion baseball game when I was in HS. One of the players, who just happened to go to UF on a football scholarship, was running late and drove up to the field just as he was to come up to bat in the top of the first inning. He rushed out of his car, finishing dressing as he ran toward the dugout and then home plate. As he was taking his stance, somebody in the crowd yelled "Hey, your lights are on!" The guy calls "time" and runs up to his car (a green Ford Maverick as I recall). When he gets to the car, he realizes that he's locked his keys in the car. After cussing for a minute or so, he looks over and sees that the passenger door is unlocked, so he runs around to that side, opens the door, reaches in and unlocks the driver side door, shuts the passenger door, runs around to the driver side, opens it and cuts the lights off and retrieves his keys. Hilarious, but nobody laughed because the guy was strong as an ox and would beat the hell out of you.