A Jackeroo rides

A Jackeroo rides into town after months of rustling. He ties the horse out the front of the pub, dusts off his pants, and then walks around to the back of the horse and runs his lips along the crack of the horses ass. He heads into the bar, and asks the barmen for a glass of beer. The barmen says, "Listen mate, can I just ask why you ran your lips along the crack of your horses ass ?".He replies, "I've got chapped lips".The barmen replies, "does that cure them ?". The jackeroo replies, "no but it sure stops me licken 'em".