No Signs Allowed Funny Picture
2/4/09 | FunnyFailPictures.com
This one is a classic: a funny sign that says "No Signs Allowed", lol! It's similar to another classic, the sign on a grass field that says "Don't step on the grass". So how did the guy put the sign there without stepping on the grass?! Via Habeeb.com.

This is probably from Hawaii. I've seen this in Oahu, and while it may be inane for people not from these parts, it's common for signs about businesses, yard sales, dogs, and especially political campaigns to go up all over the road and highway-side. This is to prevent that.
But yes, I do find it funny when I drive past one.