So one day Farmer John called the sheriffs office and said, "You've got to do something about all of these people driving so fast and killing all of my chickens."
"What do you want me to do?" asked the sheriff.
"I don't care," said Farmer John. "Just do something about these crazy drivers!" So the next day, he had the county workers go out and erected a sign that said, SLOW: SCHOOL CROSSING.
Three days later Farmer John called the sheriff and said, "You've got to do something about these drivers. The school crossing sign seems to make them go even faster." So, again, the sheriff sends out the county workers and they put up a new sign that said, SLOW: CHILDREN AT PLAY.
But that sped them up even more! So Farmer John kept calling, and the sheriff kept changing the signs.
Finally, Farmer John said to the sheriff, "Your signs are doing no good. Can I put up my own sign?" The sheriff was ready to let Farmer John do just about anything in order to get him to stop calling every day. He said, "Sure thing, put up your own sign." And after that, the sheriff got no more calls from Farmer John.
Three weeks later, curiosity got the best of the sheriff and he decided to give Farmer John a call. "How's the problem with those drivers? Did you put up your sign?"
"Oh, I sure did. And not one chicken has been killed since then. Sorry I can't talk; I'm very busy." He hung up the phone.
The sheriff was really curious now and he thought to himself, "I'd better go out there and take a look at that sign... it might be something that WE could use to slow down drivers..." So the sheriff drove out to Farmer Johns house, and his jaw dropped the moment he saw the sign. It was spray-painted on a sheet of wood:
Go slow and watch out for the chicks
|~~ h/t ajdshootist|