A guy walks into a bar and sees a dog playing poker. He is astonished and wonders if his eyes deceive him.
“Bartender, is that really a dog over there playing poker?” the guy asks.
“Sure is,” the bartender replies.
“Wow!” the guy says. “Is he any good?”
“Nah,” the bartender says. “Every time he has a good hand, he wags his tail.”