You need to react the first five seconds of an active shooter. And -- as Paramount workplace safety consultant John Brunner says in moments of crisis our brains delivered to function can be...
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You need to react the first five seconds of an active shooter. And -- as Paramount workplace safety consultant John Brunner says in moments of crisis our brains delivered to function can be overwhelmed. On the other hand are muscle memory seems that we've practiced over and over can kick into overdrive. And that's how you can -- your life. Here in the situation Elizabeth and you know that the shooter is pretty far away. Right here we have an accident -- -- tell people we have a shooter down the hall but expects that over here of use anything that will help you cover your tracks. A fire extinguisher can read a literal smokescreen. If you train for these situations. That you will strengthen that muscle memory -- salute the fire drill right and we should be doing -- -- where we're getting to that stage. -- -- you're trapped and there is no way to run option to high. In the bathroom without a lock you know crooner says improvised by using -- -- to slow down entry. And if you have to hide inside an office we locked the store if you have any secondary devices these will be means -- sisters who were stopped by good source absolutely. But what if your corner in your office at the gunman find your hiding spot if you're hearing him -- through this storm. After with the -- you have to attack. Option three find. The committee comes in the door -- -- at -- you -- to -- -- -- you have to -- your life. Look around for anything that could be used as a weapon. Taking those scissors and where we're ready to go right go for their -- -- -- years -- for any piece of body you can. Maybe you need to stab him in the shoulder maybe even if -- slap in the face it becomes survival you have to develop a survival warrior mindset.
This transcript has been automatically generated and may not be 100% accurate.
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