Three dogs were sitting in the waiting room at the vet's when they struck up a conversation. The Black Labrador turned to the yellow Labrador and said " So why are you here ? " The yellow Lab replied, " I'm a pisser. I piss on everything....the sofa, the curtains, the cat, the kids. But the final straw was last night when I pissed in the middle of my owner's bed." The black Lab said, " So whats the vet going to do ? " " Gonna cut my nuts off " came the reply from the yellow Lab. "They reckon it'll calm me down." The Yellow Lab then turned to the Black Lab and asked " why are you here ?" The Black Lab said, " I'm a digger. I dig under fences, dig up flowers and trees, I dig just for the hell of it. When I'm inside, I dig up the carpets. But I went over the line last night when I dug a great big hole in my owners' couch." " So what are they going to do to you ? " the Yellow Lab inquired. "Looks like I'm losing my nuts too," the dejected Black Lab said. The Black Lab then turned to the Great Dane and asked, " Why are you here? " I'm a humper," said the Great Dane. "I'll hump anything. I'll hump the cat, a pillow, the table, fence posts, whatever. I want to hump everything I see. In fact, yesterday my owner had just got out of the shower and was bending down to dry her toes, and I just couldn't help myself. I hopped on her back and started hammering away." The Black and the Yellow Labs exchanged a sad glance and said, " So, it's nuts off for you too, huh ?" The Great Dane said, " No, apparently I'm here to get my nails clipped ! "