I'm in a wierd position, as the stage manager at a road house, my job is to be here for the tours for as long as they're in the building. So I end up opening up and unalarming the building at the top of the day prior to their arrival, and am here until the last bus or truck leaves the dock at the end of the night. I will lock the backstage door, but the cleaning company actually sets the alarm after they're done.
So, on one hand I exist for the tour, so it goes hand in hand that I'm the one opening up for them and locking after them. In normal day to day operations, the first office worker arriving in the morning unalarms, though the doors stay locked. Well, my doors stay lock, their doors up front get unlocked for the 8-5 business day. The Box Office sets the alarm at the end of the day and locks their doors, since they're open an hour after the rest of our days' end.
-Centaura