I was messing around with my brother when we got into an argument about a game we were playing.  He was arguing with me for a good five minutes when he then proceeded to walk out of my room before turning off the fan by yanking on it as hard as possible.  The fan is a ceiling fan and has two strings connected to it for the light and fan speeds.  After he yanked it, the string came unattached from the fan.  He then proceeds to blame me as "I broke it because I turned the fan on.  He then proceeds to begin blaming me for it breaking as he does with all things.  I then start arguing with him and start yelling.  Am I in the wrong for escalating the situation by yelling?  Am I the asshole for taking it overboard?