Had a run in with a mentally disturbed homeless man this morning. I was on my way to my church for a function. The church is only a block or two from my home so I was on foot. I walked across a bridge and I heard something in the weeds underneath, turned around and looked and a homeless guy that lives in my neighborhood is running up the bank behind me. Like I said the guy is known in the neighborhood and he's nuts so I kept an eye on him and kept moving away but I wasn't too concerned. So long story short about a half a block away he's catching up to me and I turn to look at him and he has a knife in his hand. At this point he still hasn't even acknowledged my presence but because he is coming towards me with a weapon in his hand I felt justified in taking at a minimum a more defensive posture so I backed up behind a transformer box, cleared my cover garment, put my hand on my gun but didn't draw and asked him "Is everything OK?" The guy looked at me and mumbled something about donuts and walked away. At this point he's ahead of me and moving away (I.E. No longer a threat) and all I have to do is change direction. At this point I take my hand off my gun and take a 90 degree turn away from the guy and walk away. Last I saw he was washing his face in the window washer fluid at a gas station. I didn't call the cops because they wouldn't have done anything anyway but I did tell my wife that if she sees this guy around our building she is not to go outside and if she's in the car she's to go around the block again. My main point in this is that I did take any action until I could articulate a specific action on his part (coming towards me with a weapon in his hand) that would have made any reasonable person in the same situation feel threatened and as soon as the threat ended I stood down. Do any of you think I acted out of turn?