So two guys walk into a bar, the third one ducks.

What's a fish say that swims into a concrete wall? "Dam!"

This old cowboy is sitting at the bar. In walks a woman and says "Are you a real cowboy ?" He says "Yes ma'am, I've done nothin' but ride horses and herd cows all my life." She says,"Well I'm a Lesbian, I do nothing but think about making love to women, morning, noon and night." A little later a young fellow comes in the bar and says to the cowboy, "Are you a real cowboy ?" The cowboy says, "Well I thought I was, but I just found out I'm a Lesbian !"