A blind man is waiting with his guide dog by the side of the road to cross.No traffic comes but the dog continues to sit there.All of a sudden an articulated lorry comes belting around the corner and the guide dog drags his owner out in front of it, just missing it. The lorry driver pulls up,shocked, and looks out of his window to see the blind man patting the dog on the head.He calls out "Don't pat that dog ,mate, it nearly got you killed!"

The blind man calls back "I'm just finding its head so I can kick it up the backside!"