Mistakes happen. If guns are involved, mistakes are more likely to have fatal outcomes.
Keystone cops with assault rifles.
http://www.youtube.com/watch?v=vY82seEBw5wThen there is the real Pima County Sheriff's Department SWAT team;
http://www.youtube.com/watch?v=rnYV4nrNdjAhttp://www.youtube.com/watch?v=rnYV4nrNdjAHow do you react when your asleep and subject to a home invasion and need to protect your DW and DD? The cop who aimlessly points and rapidly fires his pistol into the door way next to the other cops ear drum (makes him fall down) was classic Keystone cop.