I actually can't think of any breed that I would never have. I tend to like medium sized, active, playful, easily trained dogs, and hopefully will always be able to have one of them. But it would be nice to have a big, slow, calm dog, or perhaps a little "poofy" dog TOO, even if I'd not want one of those types as my only dog. I won't ever have a show-bred golden or lab (and probably other breeds...), though. Whenever I see a bulky (not fat, just BIG!) golden/lab ambling along sedately without much interest in anything going on, its hard to believe that it really is the same breed as the hunting/dual-purpose goldens/labs! :o But they are of the same breed, so I guess that doesn't really count for this.