Slipping Bull

At the end of the workday, one cowboy tells another, "That new bull nearly did me in today, pardner." "Oh yeah, what happened?" asked the other cowboy.

"I was putting out the feed, when the sucker came charging at me like a locomotive from hell. He damn near got me!" replied the first cowboy.

"So, how'd you get away?" asked the other cowboy.

"The bull kept slipping. He slipped three times, and that gave me a chance to make it to the fence and jump over," replied the first cowboy.

"Man, that's scary! If it'd been me, I would probably have crapped all over the place," remarked the second cowboy.

The first cowboy replied, "I DID! What do you think that bull was slipping in?"