40 Times People Tried and Failed at Their One Job

Given that most common signs aim to communicate relatively complex ideas with relatively simple graphics, it is somewhat unsurprising that the messages can sometimes come out slightly different from what was intended. I know you have all encountered signs like this at least once.

I assume that this sign is trying to warn passersby of the dreadful danger of slipping on the stairs, an admirable warning sign if you ask me. It would be very effective because the lack of clarity makes anyone stop and stare, thus walking more slowly and deliberately, unless they trip over a distraction.