I worked in a restaurant in a busy complex. After packing up one night the other manager and I armed the security cameras and alarms and made sure all the doors were locked up before going our separate ways. The following morning we both showed up to the restaurant to open and set up for the day's service. When we walked in the first thing we noticed was that some of the glass light covers were smashed on the ground and that others were rotated all the way around in their fittings. What makes it even more mysterious is that when we checked the cameras they had failed at a certain point in which the light covers were broken.