Three dogs are in the waiting room at the veterinarian.
One of the dogs ask the first dog, which is a terrier, why are you here?
The terrier responds, well I've got a problem with biting people and so my master brought me here.
The other two dogs look at him, shake their heads and say oh my, looks like the needle for you.

So, the next dog is asked, why are you here?
This dog, a collie, responds, well my problem is that I bark all the time.
The other two dogs look at him, shake their heads, and say oh my, it's the needle for you too.

The third dog is then asked why he is at the vet.
He's a very handsome German Shepherd, and he responds.
Well, I was walking by the bathroom the other night when my voluptuous master came out buck naked.
I got so turned on that I jumped on top of her and had my way.
The other two dogs shake their heads, and respond, Oh my, looks like the needle for you to, eh?
Oh no, says the German Shepherd, I'm just here to get my nails trimmed.