I have always had a dog. I always spent a lot of time training my dogs. They are always under control. I train them to poop/pee at my command. All of them sit and stay until I tell them otherwise, ETC, ETC. Not everyone does the same.

You have no idea how a particular dog is trained. A dog, at the field, will be blamed for model dings/ damage, poop, whatever just because it is there. The animal being injured or killed is possible.

Some people see their animals as children that can never do wrong. Often, these animals are not well behaved or trained. Not everyone likes animals, particularly out of control animals. You can't tell by looking at someone's dog. How can you can you judge what dogs are OK and which are not without offending members. In the end, if one brings their dog they will create conflict with someone. It becomes a catalyst for bad blood. What is the possible upside for bring your dog the the flying field? Dogs can't fly RC! Please leave your dog at home or in the car.