Big Guys, Little Dogs?

I see it everyday. A big guy and a little dog. I snicker (inside of course since he's a big guy with a little dog and probably already hates himself) and keep on walking my 55 pound pitbull. If the guy doesn't seem self conscious then he walks by me with an expression that screams: "Hey-look-how-I'm-not-compensating-for-something" but then I think, "If you give me that sort of look, you're definitely compensating." But in the end, I give them the benefit of the doubt and assume it's his girlfriend's dog. And by assume, I mean hope.