I once took a road trip with a group of grown adult men, to Lake Cumberland in Kentucky. On the way down, we were "pre-gaming" a bit and one guy thought it'd be cool to act like he was drinking clorox. He took a gulp and held it in his mouth for a few seconds, then spit it out the window. Yup, NOT a good idea. While he may have had a bacteria free mouth, he proceeded to get sicker than a dog. His temple voided everything he'd put into it and it took him a good 36 hours to fully recover. Things you should remind your kids not to do.
Floyd T