Saw a training video several years ago about surviving a knife attack. It contained actual video footage from patrol car cameras of attacks on law enforcement officers. It also showed interviews with survivors. I found it very disturbing. First, because of the speed, and lethality of an attack with an edged weapon. Second, the spiritual and psychological damage the survivors displayed when they talked about the attacks. One officer had his face filleted with a box cutter - 5 seconds. At work I carry a Beretta 92F with one in the tube and 14 in the mag with two extra 15 round mags, oc pepper spray, asp, and handcuffs. I agree with the film - if an attacker is within 25 feet of me with an edged weapon I will probably lose the encouner. I like to think I employ other measures to ensure my, and my partner's safety but vulnerability is a fact of life. Off duty I carry a DAO SP101 in 357 on my front left in a behind the belt inside pants holster. I bobed the hammer . I also carry a S&W 431PD right front pants pocket. I carry one reload for each revolver. This is my social carry and I find it ironic that I can apply defensive deadly force faster and more effectively off duty than on. This is not a complaint. Just an observation.