navycow, dog aggression was BRED into pitbulls and it is still in their genes. It is a tossup with them if they will like other dogs. You can certainly make them tolerate other dogs, but it's still a sticky situation..... My dog loves the 25 pound beagle that we have here and they play and wrestle outside all the time, never once seen her "snap" or even show some body language that is in any way aggressive with him. However, other dogs, she is just not a fan of. Everyone in this entire digg thread needs to separate aggression for dogs into two types that are COMPLETELY UNRELATED: Human aggression and dog aggression. Pits have it in their genes to be dog aggressive and they ALSO have in their genes to NOT be human aggressive. Go read their history. The problem with this situation and most situations in this country is the people that are the loudest, and the people making the rules often, are the least educated about the subject matter.