A guy in a bar is so drunk he can hardly stay on the stool. The bartender says, ""Hey pal, I think you had enough, I'm shutting you off."" ""What for,"" says the guy. ""Because you're drunk,"" the bartender replies. ""I ain't drunk & I'll prove it,"" the lush says. ""See that cat coming in the door, he only has one eye."" The bartender says, ""Wow buddy, you're more plastered than I thought. That cat ain't coming in, he's going out!""