Signs are designed to be practical, offering directions or information, or in some cases crucial warnings.
But sometime signs makers get things very wrong, leading to creepy and confusing posters.
People from around the world have shared the most ominous signs they spotted and Bored Panda collated the best into an online gallery.
One shows a 'do not feed baby to crocodile' sign which was spotted in an American zoo.
Elsewhere a creepy sign about mannequins was found in a disused nuclear bunker, in Essex.
While a sign spotted on the Bucklin Trail, in Killington Vermont, assured hikers that the trail was 'the point of no return.'
People from around the world have shred the most ominous signs they spotted and Bored Panda collated the best into an online gallery. Including a 'do not feed baby to crocodile' sign which was spotted in an American zoo
A door, which was chained shut, at The California Institute of the Arts, warned people of a 13 foot drop on the other side.
Elsewhere, a bizarre sign was spotted in a hotel toilet asking guests not to drink the loo water.
Here FEMAIL takes a look at some of the terrifying danger signs from around the world...
A door, which was chained shut, at The California Institute of the Arts, warned people of a 13 foot drop on the other side
Another terrifying warning got super graphic as it revealed a machine 'doesn't know the difference between paper and flesh'
A warning nobody should need! Elsewhere a bizarre sign was spotted in a hotel bathroom asking guests not to drink toilet water
A shopper spotted this bizarre sign while browsing with their child
While this sign was spotted, in Chicago, near the former site of The Argonne National Laboratory, which was an early site used for The Manhattan Project (a programme to produce the first nuclear weapons during World War II)
This sign was spotted, in Australia, warning people of 'unexploded ammunition' in the area
Elsewhere a creepy sign about mannequins was found in a disused nuclear bunker, in Essex
Another ominous sign asked parent to get their kids into this 'cage free day care'
While a sign spotted on the Bucklin Trail, in Killington Vermont, assured hikers that the trail was 'the point of no return'
This funny warning sign added a little bit of humour asking people to fill a decoy purse of angry bees for thieves to find
While these new home owners clearly got fed up with a certain clientele calling to their house