>but i also think dogs take on the traits of their owners and environment<
One of mine is so laid back, a bit lazy at times but can be quite forward and bossy when she puts her mind to it. The eldest one is so over the top and energetic and bouncy and nosy but can also be a bit moody. The youngest is very much in your face, extremely nosy, noisy, on the go most of the day, and gets into trouble every 10 minutes or so - :) So I'll go along with that, they all take after me :P :P
Seriously, I don't really believe in reincarnation, but I'd like to think their spirit never leaves us