Another Mule Joke!

The old farmer just got married and as he was driving home with his new wife the mule stopped and wouldn't pull
the wagon. The farmer smacked him over the head with a 2x4.....and said,
"That's One! .....
...The second time the mule refused to move the farmer went over and hit him with the 2x4 and said..."That's Two!.........
......The third time the mule refused the farmer took his gun and shot him.......
The new wife started to criticize the old farmer for shooting his mule and he says;

That's one................