People like that don't need to have the enjoyment of the park anyway. If they want to act like a as$, then better that they go home. You did the park a favor driving then away, more enjoyment with decent people around.

I hope you invited him to come back with you again. It could do one of two things, drive the idiots away or teach them that they where wrong about that breed. What ever way it goes it is for the better.

His dog is beautiful, btw. And your guys look like they where having a great time with him. Fun at the part what more could you ask for.