Parent complained about me

So I work at a doggy daycare, and we had a couple of dogs get into a fight. I had just gotten off of the phone with one of the parents when the other walked in to pick up. I walked over and said that I needed to speak with her in the office. As she was walking she said “getting called into the principals office again” and another mom in the lobby said “yeah I got called in there last week”. And then a third mom who wasn't even involved complained about the interaction to corporate. Wtf