Some warning signs do the job by scaring you straight. Others -thanks to missing letters, savage honesty, or accidental poetry- make you spit out your coffee first. This roundup celebrates the second ...

Left image shows a sign in nature warning non-flies not to trigger flytraps as they will die. Right image shows a bathroom door with two handles labeled "Washed Hands" and "Didn't Wash Hands. Signs ...

If you can't read it, the sign says: "IMPORTANT NOTICEDOGS ARE WELCOME... BUT.We are an educational mineral science company, and we pride ourselves on being accommodating to both man and beast.