Situational awareness is in my opinion the number one most important tactic and mindset to master over any other. Without situational awareness, you are no more prepared if you had 2 guns and your finger on the trigger of them both. Situational awareness is everything. SO please for the love of God, put down the damn phone!
http://www.itstactical.com/intellic...ss-put-the-damn-phone-away-and-pay-attention/