Entitled Karen tries to get me banned from ski mountain

This is my first post, so it might not be that detailed. Last week, I was skiing with family and friends when this lady comes out of nowhere and almost causes me to crash. I went over to the woman to confront her when she starts yelling at me. Karen: Hey! You almost ran into me! Me: Actually- Karen: You're not the only person on the mountain! Be more careful, or I'll get you banned. Luckily, my dad came over and started arguing with her. After a bit, the Karen skis off annoyed. The rest of the day was good, but I was constantly looking out for her so I could avoid her.