Keep moving. If you do not move you are not alive.
Many people practice knife work as if they were eating toast or watching a film on their television set. It is the goal to stay relaxed during such danger but many ignore the danger instead of making their peace with it. Work in a group of at least three with a rope and a stick and a knife if this way. One has to walk around and pay attention as the other two walk as well or stand or sit and at any time they move on him either one or all to hit him with the stick and stab him. This will first force you to keep looking and walking and connect pain and pressure to the knife attack and will teach you to move your body as well as your arms when you are moved upon. a variation of this is to tie the rope to the leg or arm of the “innocent” and at any time pull on the rope to help with dealing with the ever changing reality and avoid the illusion of wrestling with a knife. The same can be done with a whip instead of the stick and another variation can be to work with more than one knife to feel how it feels to work on getting to the person with the knife.