He most likely used an item called Portable EMP which opens up doors. Did you hear a strange sound when the doors opened? If he really abused your doors could only be unowned not magically opened. Were your doors still yours after the incident?

He most likely used an item called Portable EMP which opens up doors. Did you hear a strange sound when the doors opened? If he really abused your doors could only be unowned not magically opened. Were your doors still yours after the incident?