If we lived in Israel, we’d always assume that liquid-filled bottles are dangerous. In America, though, if we find one in our yard, our first thought is almost certainly going to be “garbage.” And our second thought will be “kids.”
As it happens, the second thought is probably correct, but there’s a chance that the bottle isn’t garbage, it’s a “Drano bomb.” These have been around for a while, but the internet makes it easier for kids to figure out how to make them, without helping the kids to understand how dangerous they are. Here’s the scoop, direct from Snopes, warning that a plastic bottle, Drano, and some aluminum foil are sufficient to create a bomb that, when moved even slightly, will spew boiling liquid with explosive force. The unlucky recipients of these Drano bombs have lost fingers and eyes, and been terribly scarred. If you find a suspicious bottle that looks swollen or melted in any way, don’t touch it. Instead, call the police.