You take with you in combat all the good and bad habits that you learned in your training routine. If your tactics in your training consist of high fancy kicks, wide movements, which require you to have a lot of room you will instinctively do the same when your adrenaline kicks in a street confrontation. That will seriously hinder you if you are fighting for survival in a confined area with furniture around such as a living room or bedroom. Your training should also focus on the mind/spirit as well. Self defense is 90% mental it does not matter how effective your tactics are, if you don’t train your mind for combat you will freeze.
Condition stimulus training is about making your training as real as possible so when your instincts take over in a high adrenaline stressed situation you are ready to use your environment to your advantage and not be hindered by it. Your mind will also be familiar with the stimulus and you will not freeze. Many martial artists and practitioners of self defense programs become overwhelmed when their environment changes from a dojo setting to a small confined area. Being in a room filled with furniture gives a martial artist the feeling...