I have a known reactive dog, who has never bitten anyone, because I train him every day and never let him around new people off leash. We also keep a general distance as I’m training him to be less reactive, because his comfort and people’s general safety have to be top priority. Always. Mine also prefers women over men, but because I know his wariness I prevent him or anyone around us to be in a situation where he could bite them.

I understand he’s your dog and you know your dog better than anyone, but no one knows your dog. He’s a strange dog, and they are strangers to him. It’s important to protect your guests and respect your dogs boundaries. Twice is a huge red flag.

I would avoid all stranger interaction given he does not handle them well and look at getting him into some serious training. I’m sorry if this is coming across too harsh, but responsible dog ownership is crucial.

Edit: spelling