There are some very good responses in this thread.

I share my Mom's and my dad's dogs seperately. My mom has 3 and all 3 could potentially be "dangerous breeds". A lab/chow mix, a pit/dobbi/rotti/sharpaie(Sp?) mix, and a pit/mutt mix. All three are the most sweet and loving dogs, and wouldn't hurt a fly. My boy surf the pit/dobi/rotti mix was abused when he was a tiny puppy. We picked him up from a shelter when he was probably 8 months old, and he is absolutely the biggest wuss in the world. He has abondanment issues, but he's never been aggressive and is always submissive to any male figure. I feel bad, but I'm probably the only male he will rough house with. It's all in how you train them. We didn't have to establish who's the alpha male in the house, but we did have to work with him to make sure none of those traits that are potentially "Dangerous" in him, rear their ugly head. I couldn't ask for a better dog. I'll post a pic later for sure.

My dad's dogs are all "normal" breeds. A lab/aussie shepard mix (like 75% lab), a sheltie, and a yorkie rat terrier thing. (She's actually the worst lol) I would venture to say that out of the 6 dogs I see on a regular basis, my mom's are just as well mannered and behaved as my dad's. It's all in how you train them.