Now I haven't been in a fight since the 8th grade (teenage-girl drama) but I'd like to think that I am more mature now. I have twice chased down peeps who stole from me, but never actually caught them. I would guess that in a fight or flight situation, I would fight. However, I don't think I would fight unless I was being attacked. I certainly don't think arguing over bus seat meets that criteria.
*Leila has yet to fight, but she will take down anyone who dares to touch her lollipop.