If they do, it could be because they want to feel more like part of the family, or it's just a particular animal's personality and that animal was matched with the person meant for it.
Yes, I'm glad to hear differing opinions! We're keeping our options open but leaning toward a purebred waterdog of some sort. I'm sure I'll be back later with questions about how to integrate a new puppy in to a home life ruled by a cat (and with an African basenji in the mix)... :)
@AJs:
See, Dan? First you tick everybody off, now you make everybody cry.
But you're still not getting off the hook that easy. You will NOT be banned and in fact will be required to stay. :D
What?! That's it I'm going back to my stupid jokes!