Just found a fun website called OddlySpecific.com.  They specialize in oddly specific signs.  Here are a few fun examples, but all of them are worth seeing:
Note the Pidgin version of the warning at the bottom, btw!
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Good advice indeed!
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From the "Thank you, Captain Obvious!" collection.
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I have no idea what to make of this one.
 



 
 

 
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