Don't make assumptions. How many military snipers do you know that only preformed missions as a sniper from the day they left Benning till the day they retired.

As far as people behind me. They have plenty of time to flip the selector switch on the way up and I trust some a hell of a lot more than others. If you've bonked so many doors explain how over the course of a deployment (on only the good Lord knows how many missions) you always had your personal favorite door bonking buddies with you.

If you're LEO how many "SWAT" ninjas are actually good and how many are there because they drink beer with the right guys.

In both cases there can be incredible warriors or absolutely dangerous idiots behind you. When sheitte gets real noisey good men can do some wierd stuff. Self preservation kicks in and bad sheitte does happen.