You walk in, you take off your dogs leash, and you trust that everyone else in the dog park has a fairly well-trained, friendly dog, right? You are trusting that if someone has an extremely dog-aggressive, violent, uncontrollable beast, that they left him at home. Right?
As I said earlier, if there's aggressive dogs or idiot owners, I'm not just going to sit there and let things happen, I'll leave.

If you take your dogs to a dog park, you (hopefully!) realize that there are certain inherent dangers and risks. If you don't realize this and are thinking there is no possible risk or danger at all, you are probably not going to be watching as closely as you should, and setting yourself and your dog up for a potential issue. Seeing dog parks, or anything else for that matter, only through rose-colored glasses is setting yourself up for a fall, to be sure.
OF COURSE I realize that there are risks. And as I've said in my posts several times, I follow my dog around and watch him very closely. If the dogs start to play too rough I'll take him away for a time out.

Everyone is entitled to their own opinion. I don't care AT ALL if you choose to not take your dogs to a dog park. I was just stating my opinion on dog parks and my opinion on how your post made me feel.