Be careful who you decide to spar with! You never know who you are about to encounter. Right now, there is a man with mental health disorder assaulting people in random gyms! Charlie Zelenoff has been showing up to randomly chosen gyms in the Los Angeles area, challenging individuals to a simple boxing match with no rules, and then punching them in the head as hard as possible and as many times as he can. The way he conducts himself and walks around the city shows that there must be some sort of delusional behavior and therefore mental illness involved. Please be aware of this man. Look up his image online and know what he looks like! Avoiding him could save you serious injury or your life.