This goes without saying:

 

And another former president:

 

Now, don't tell anyone about this location:

 

And if we are dealing with explosives...

 

Now, I don't trust that flight school, do you?

 

Now, that's a graphic way to express the danger

 

But sometimes you do need to write something so the smart-asses will understand:

 

But sometime the sign doesn't make sense until you see something like this (in the picture you see a person that has committed blasphemy)

 

Here is another caution sign

 

Here is another caution - don't think dying is going to exempt you from paying the fine

 

In case you saw too many movies...

 

Would you steal that car?

 

Another way to protect your car (works great on morons):

 

Be careful - baby in the car

 

You can also find funny signs inside the car.Heck, it might even work...

 

We all know that girls just wanna have fun...

 

And trains are not alone, dancing girls are not as dangerous as E.T.'s and Alf's friends

 

Sometimes you find futuristic high-tech that must be originated by alien technology. Something like this, for example:

 

Are you voting democrats or republicans?

 

Are they promoting the main dish?

 

Walk this street with extreme caution