A witness to an automobile accident was testifying. The following exchange took place between the lawyer and the witness: The lawyer: Did you actually see the accident?

The witness: Yes, sir.

The lawyer: How far away were you when the accident happened?

The witness: Thirty-one feet, six and one quarter inches.

The lawyer (thinking hed trap the witness): Well, sir, will you tell the jury how you knew it was exactly that distance?

The witness: Because when the accident happened I took out a tape and measured it. I knew some stupid lawyer would ask me that question.