Dog vs. cat people - the differences

Yahoo!'s 'Shine' lifestyle magazine has an article on the subject. I'm not sure where I fit in, because I like both dogs and cats; I grew up with both, I've had both as pets, and I fully expect to have both as pets again in the future sometime. To me, it's not an either/or situation at all. Still, they offer some interesting statistics collected and analyzed by Hunch.com, including these examples:

Dog people: 15% more likely to be extroverts
Cat people: 11% more likely to be introverts

Dog people: 67% more likely to call animal control if they happen upon stray kittens
Cat people: 21% more likely to try to rescue stray kittens

Dog people: 18% more likely to consider Paul McCartney their favorite Beatle
Cat people: 25% more likely to consider George Harrison their favorite Beatle

There's more at the link.

I'm not at all convinced. What do you think, readers? Are they right about these differences, based on your experience of 'dog' or 'cat' people? What about those who, like me, enjoy both dogs and cats?

Peter