|There is this corner bar that has three entrances, one on each street, and one on the corner. A drunk walks into one entrance, and bartender refuses to serve him, telling him he is too drunk.|
So, the drunk leaves, stumbles down to the corner where he finds the second entrance. He enters again, and is refused service again. He stares at the bartender, falls back out into the street, turns the corner, and finds the third entrance.
He goes back into the bar, sees the bartender, and stops dead in his tracks.
After studying the bartender for a long moment, he exclaims, "Good grief! Do you own all the bars in town?"