you guys were in a zombie apocalypse but you were an expert at it but he didn't know that,he just liked showing off and acting like he was better because he was so cocky

You guys were walking down the forest until a zombie comes out of nowhere and grabs Aaron by the neck,Aaron yelled for you to help him and you were usually childish but you grabbed your knife and stabbed the zombie in the eye violently and it let go off Aaron and died,Aaron says "holy shit.."