I thought you were not supposed to use a spray bottle on cats with PTSD. That's what I've been told anyway. My cat is not as vicious as yours in that the scratches and bites aren't as severe. However, they do happen with enough regularity that I remain concerned. Usually the scratches go away after a week or so. The bites seldom break the skin enough to bleed, but are strong enough that they wind up leaving bruises. I need to start charting when/where/how the attacks happen & I suggest you do the same.I think your cat has PTSD,... When you see him coming at you spray him with water.