When I worked for wincon security a few years ago, whoever was in charge with the scheduling was very disorganized. On a couple of occasions, they made me go to a site twice, only to find out once I arrived at the site they wanted me to work at, I WAS NOT scheduled to work! All that has wasted for what?
When they put me to a site that I never worked at, all new to me, they actually scheduled me with someone, who ACTUALLY SLEPT for 50 % of his shift.
No matter what company you work for, you must set good examples for those around you. I didn't witness this, but one guard said he saw a supervisor sleeping while on duty.