To clarify things some more and to keep beating the dead horse. I have family members involved with law enforcement, and many family friends who are or have been cops at some point. I've also looked into attending several academies but it's simply nor feasible for me at this time.
-Police DO NOT AND WILL NOT shoot like they do in the movies. They shoot for center mass as shooting for arms/limbs is unreliable and handguns are not as accurate as movies portray them to be. Seriously, go shooting and you'll understand what I mean.
-Tasers are not always effective, and many departments do not issue them to all officers as there were too many lawsuits and problems that arose with them being deployed. They also won't always penetrate clothing and have no effect against those on certain stimulants and drugs.
-Use of force is a very complex issue. A female or male officer who is smaller say 100-150lbs might have to go lethal on a large suspect who becomes extremely aggressive and physical before there is backup. At the end of the day, they want to go home in one piece, not to the hospital or morgue.
-Just because someone is unarmed does not mean they cannot kill. MMA, UFC and just general street fighting knowledge has the ability to maim. The kind of person who is going to fight a cop is someone who is not going to fight fair.