A man who wanted a dog to protect his business, visited a kennel that specialised in attack dogs. The man explained to the kennel owner that he wanted the biggest, meanest, most vicious dog in the kennel, and the owner offered to take the man on a tour of the premises.

After they had been walking for a few minutes, they came upon a large dog, snarling loudly, and biting and clawing at the cage.

"He looks like he'd be a pretty good attack dog," said the buyer.
"Well, he's not bad," replied the owner, "but I have a different one in mind for you."

They continued walking around the premises, and after a while they found an even larger, meaner dog than the first. He snarled at the two men and tried to bite them through the wire on his cage.
"Ah," said the buyer. "This must be the dog you were referring to earlier."
"Well, no." said the owner. "I have something better in mind for you."

The men continued their tour. Eventually, they came upon a large dog, panting heavily and lying quietly on his side, licking his own butt. He seemed unaware of the men's approach.

"This is the dog I had in mind for you," said the owner.
The buyer was flabbergasted. "You're joking!" he exclaimed. "This dog is tame compared to the others; he doesn't even act like an attack dog."
"I know he appears tame now," said the owner. "But you see, he just ate a lawyer, and he's trying to get the taste out of his mouth."