A man was drinking at a bar and the bartender came over to tell him he had a visitor waiting for him outside the bar. He had just bought another large beer and he didn"t want anyone to drink it. So, he wrote a little sign on a piece of paper and left it by his beer that said: "I spit in my beer." When he returned to his bar stool there was another note beside his beer: "I spit in your beer too!"