Share 'Guy walks into a bar'

A guy walks into a bar with his dog. Sits down at the bar and tells the bartender: My dog here, can talk. If I get him to talk to you will you comp me a martini?   Bartender says sure why not, but if he doesn't talk I'm throwing you both out for wasting my time.   Guy turns to the dog and asks "What's on top of a house?" Dog" "Roof"   Guy "What does sandpaper feel like?" Dog: "Ruff"   Guy" who wa…