A blind man stood at the edge of the pavement, waiting to cross the road, when his guide dog weed all down the side of his leg. The man immediately took a biscuit from his pocket and gave it to the dog. An onlooker turned to him and said, ?That?s very good of you, considering he just soaked your leg.? ?Not really,? replied the blind man. ?I?m just finding out where his mouth is so that I can kick him in the balls.?