Get To Know You

I was with my family at the mall and my brother was holding the table and chairs down while I went to get my food. I came back and just as I was about to grab the chair and sit down some other lady swiped it from me (I don't think she saw me). I'm conflict/confrontation avoidant as hell so just said 'welp' and got myself another chair that was like a couple feet away.

And so, I'm curious what would y'all do if that happened to you?