To be fair, I have met some very friendly pitbulls. The most notable were females. However, they have the capacity to cause greater harm than other breeds... the owner I attempted to explain this to would not hear it. So I suggest "rights and responsibilities" be legally used as in any other civic aspect. You have the right to having said (thing); you are responsible and liable for (said thing) control.
<sniff sniff sniff>. Yep. Thought so.