I found this one via my friend Alexi:
Ha! Remember to practice you draw and be aware of your surrounding.
EDIT 2010-10-26 20:01: When I first viewed this video I didn’t realize the officer was shot in the head. I was thought he just fell to the ground and rendered himself unconscious.
Realizing now what I didn’t when I posted this I’m scratching the “Ha” out as this isn’t a laughing matter. I’m not actually that big of an ass as to laugh at a person being murdered, I just didn’t realize that’s what happened.