"Courtroom humor" joke

The following is a courtroom exchange between a defense attorney and
a farmer with a bodily injury claim. It came from a Houston, Texas
insurance agent.
Attorney: "At the scene of the accident, did you tell the constable
you had never felt better in your life?"
Farmer: "That's right."
Attorney: "Well, then, how is it that you are now claiming you were
seriously injured when my client's auto hit your wagon?"
Farmer: "When the constable arrived, he went over to my horse, who
had a broken leg, and shot him. Then he went over to Rover, my dog,
who was all banged up, and shot him. When he asked me how I felt, I
just thought under the circumstances, it was a wise choice of words
to say I've never felt better in my life.