To delta 1, as a retired NYC PO with 20yrs service, just be advised if you kick someone in the head with steel toed COMBAT BOOTS and depending on the circumstance" IE he came at you with a knife,beer bottle,sword ETC", if he dies from his wounds you will be charged with Criminal Negligent Homicide. Your talking at least 8yrs in prison. We had a guy kick someone in the head with steel toed combat boots and served 5yrs in prison due to one guy bumping into the other guy on the street. NO OTHER WEAPONS WERE INVOLVED. I also know of some of my own fellow students who walk around with mouth pieces in there pockets just in case. If your looking for a fight it will find you eventually. I myself would come in early one hour a week with only the most senior students to practice full contact fighting with Head gear with face shield, Vale Tudo Gloves, Chest protection, shin guard protection and of course groin protection. We went at it full power practicing stand up fighting and grapping including shooting for the opponent and taking him down hard. You did get busted up but you did learn a lot on how to block a fist coming at you at full speed. Yes I did get hurt sometimes.