You may have seen postings about the Drano Bottle Bomb warnings. Heed those warnings as this nasty concoction's dangers are very real.

Drano Bottle Bombs are a very real danger (Photo by Justin Sullivan/Getty Images)

According to Snopes.com:

Kids are putting Drano, tin foil, and a little water in plastic drink bottles
and capping it up - leaving it on lawns, in mail boxes, in gardens, on
driveways etc. just waiting for you to pick it up intending to put it in the
rubbish, but you'll never make it!!!

If the bottle is picked up, and the bottle is shaken even just a little - in about 30 seconds or less it builds up enough gas which then explodes with enough force to remove some your extremities. The liquid that comes out is boiling hot as well.

Don't pick up any plastic bottles that may be lying in your yards or in the gutter, etc. Pay attention to this. A plastic bottle with a cap. A little Drano. A little water. A small piece of foil. Disturb it by moving it; and BOOM!! No fingers left and other serious effects to your face, eyes, etc.