Three  dogs were sitting in the waiting room at the vet's when 
they struck up a  conversation.
  The  Yellow Lab turned to the Chocolate Lab and said, "So why  are you 
here ?"
  The  Chocolate 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."
  TheYellow  Lab said, "So
    what is the vet going to do  ?"
  "Gonna  cut my nuts off,"  came the reply from the  Chocolate 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 .

"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 Yellow Lab and  asked,
   "Why  are you here ?"

"I'm a humper," the Yellow Lab  said.
   "I'll  hump anything.  I'll hump the cat, a pillow, the  table, and 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 Chocolate Labs exchanged a sad  glance and said, "So, 
nuts off for you too, huh  ?"
   The  Yellow Lab said, "No, I'm here to get my nails  clipped."