"Cowboy Wannabe" joke

More than anything, Bob wanted to be a cowpoke. Taking pity on him, a rancher decided to hire the lad and give him a chance."This," he said, showing him a rope, "is a lariat. We use it to catch cows.""I see," said Bob, trying to seem knowledgeable as he examined the lariat. "And what do you use for bait?"