There's a dog park here in Tucson that I go to sometimes when i have my "custody" days with Missy. I've never had any problems there are all. Missy is non agressive so I don't really have to worry about her. Whenever a pack of dogs starts to growl Missy runs away and stands by me until it's over. THe owners at the park I go to are very responsible and the dogs are all friendly. If we hear aggressive growling we all just run up to the pack and grab a dog even if it's not our own. Now that I think about it, it probably isn't safe to just grab a random dog when a bunch are getting agressive, but we all do it and so far I haven't seen anyone get bitten or a dog get serverly injured.