Self-storage customers store and do the darndest things inside their units, and sooner or later, the facility manager’s “Spidey sense” may tingle over a particular space. As it’s their job to monitor what’s occurring on site and keep the property and its people safe, they may need to sneak a peek behind the door. In this video, storage-management expert Carol Mixon-Krendl recounts some of the strange things that have been discovered inside tenant units and discusses the criteria operators should use to determine if investigation is necessary. She even offers insight on how to glimpse inside a unit without unlocking the door when an emergency or suspicious activity warrants it.