Three Dogs at the Vets

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 owners' 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 ! "