The sign is intended to let other people know things that need attention to avoid endangering themselves and others, but in practice it is not always the same.
Let's take a look at some of the signs that make people "brain" the following.
"Touch the wire will die immediately fined $ 200
Probably a method of encouraging people to ride a bike?
The drunkard." This is the sign in the area ..
This is where many overweight people cross the road.
A sign for campers, climbing. "If you encounter mountain lions: Let's face it." Slow down, or shout loudly, or keep children near you, or pick up children without folding. Attack, fight back. "