How many poker players does it take to change a light bulb?

Answer to follow.........

And the answer is, of course: It depends........

A man walked by a table in a hotel and noticed three men and a dog playing cards. The dog was playing with extraordinary performance.

"This is a very smart dog.", the man commented.

"Not so smart," said one of the players. "every time he gets a good hand he wags his tail."