<human>: I work in a restaurant that has two floors, and several side rooms and offices scattered through the building. It's part of procedure at night to have one person do a check of everything, all those rooms and the second floor, the basement (etc) and if it takes more than 15 minutes the other person is told not to go looking for them, but to call the police.

Well, my friend lost the flip and had to do the late night screen while I was counting my till at one of the tables by the stairs. He goes up and before I realize it he's spent 10 of the 15 minutes just on one floor so I decide to call the police when he doesn't answer my calls. I tell them to come in the front door and I go unlock it for them. 

What felt like about 10 minutes later my coworker is being walked down the stairs by what looks like some sort of junkie with a pocket knife. He demands the till, and my coworker keeps telling him that he doesn't have to do this. I step back from my till, and he grabs it and runs out the front door only to get smoked by a cop and half a dozen cops jump in and beat the ever living shit out of him.

Could you distill the essence of the text into 1-3 sentences?
<bot>: version: We got jumped after close at work but our policy to not go looking for a missing person saved the both of us and the guy got caught