I would raise my two index fingers, put them on the side of my head to look like horns and taunt her by going, "MOO! Hah! Can't cave me, can 'ya?" then start running around and praying she doesn't catch up and headbutt me and that the full moon doesn't appear anytime soon and then if she still doesn't catch up, I'll just run home, lock my windows and doors, hide ma' wife, hide ma' kidz and then stay there till the next day and I'll go to school acting all cool as if nothing had happened at all. (Like a boss)
What if you met Rumia, while she was in the middle of her meal...