three dogs

[Nick]

three dogs were sitting in the waiting room at the vet's when they struck up a conversation. The Yellow Labrador turned to the Black Labrador and said,
  " So why are you here? "

The Black 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 Yellow Lab said, " So what's the vet going to do? "

 " Gonna cut my nuts off " came the reply from the Black Lab.
 "They reckon it'll calm me down."

 The Black Lab then turned to the Yellow Lab and asked " Why are you here? "

 The Yellow 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 owner's couch."

 " So what are they going to do to you? " the Black Lab inquired.

  " Looks like I'm losing my nuts too," the dejected Yellow 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."

 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!"