Teacher: Why are you late, Joseph?
Joseph: Because of a sign down the road.
Teacher: What does a sign have to do with your being late?
Joseph: The sign said, "SCHOOL AHEAD. GO SLOW!"

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A policeman had a perfect spot to watch for speeders, but wasn’t getting many.
Then, he discovered the problem - a 10-year old boy was standing up the road with a hand painted sign which read “RADAR TRAP AHEAD”.
The officer then found a young accomplice down the road with a sign reading “TIPS” and a bucket full of change.

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A motorist was mailed a picture of his car speeding through an automated radar. A $40 speeding ticket was included.
Being cute, he sent the police department a picture of $40.
The police responded with another mailed photo of handcuffs.