It's Monday night and you meet your buddies for some beers and football at Buffalo Wild Wings. For once, your favorite hometown team is on fire and to join in on the merriment, you put back a few beers. You eat some wings and drink a little water. Somewhere after beer number six, you've lost count of how many drinks you've had. The check arrives. Everyone pays and gets ready to leave. You put your hand in your pocket and finger your car keys as you mentally go over the route home. It's not that far, you say. It's late and there won't be too many cars out on the road. You stumble out to your …

Scenario: You're an on-duty police officer and you get a call from a frightened resident reporting that an axe-wielding psycho is wandering around the neighborhood. You and your partner locate said psycho hiding out in his back yard blabbering to… apparently no one. You walk around to the back of the house, your partner walks around the front. The plan is to surround and contain the guy.  As you round the corner, hand on your holster, you come up on the guy yelling about, but don't see the axe concealed at his side. You also don't see your partner sneaking up on him around the opposite corner…