My 11 month old pup is mostly a barrier-related frustrated greeter to other dogs. She has always been totally fine with meeting other dogs though. She has developed some people (mostly men) reactivity. Her situations where she meets people are very managed and she is muzzle trained just in case. The weird part is though if there is more than one person (not including me), she's totally fine. It's just when there is 1 person. It's super bizarre. Any thoughts here? Not sure I'm looking for advice on it, because it's just a situation I know I have to manage with her but I guess if anyone has anything specific to this scenario, that'd be helpful!