Every once in a while, we encounter a sign that makes us do a double take. Maybe it offers a strange piece of advice, or a curious directive. Maybe it forbids something we can't imagine a human being actually trying. But in every case, we have to wonder: How did it become necessary to put this up?
Imgur user chocolateistheanswer has compiled a wonderful collection of such signs, and they are each a sight to behold. Join us in puzzling over their origins—or, if you know how they came to be posted, please tell us, because the mystery is driving us mad.
In conclusion, people are always punching, pooping, and summoning ghosts in places they shouldn't. For shame.