Most dogs just sniff butts for fun...

And then there are these dogs:

Trained Labrador Can Sniff Out Colon Cancer, Researchers Say

I wonder how much we will be charged for this service.

Ah… a Chocolate Lab.

“And of course $300.00 for the Lab work.”

“How much is that if I also get a Cat scan?”

Not so much that you’d be put in a hole.

You don’t have to be an ass.

Sorry, the tech who was supposed to do that procedure was distracted by a laser pointer; we’ll have to reschedule.

There’s a hot dog bun joke in here somewhere, but damn if I can find it.

Enough to supply the dogs with a lifetime supply of hookers and colon blow.