They locked my company down for two weeks when an AN/PVS-4 night sight disappeared. It was recovered.
I hated night vision goggles and scopes for that reason. You had to practically put a watch on them. Too many people wanted one. That was the 80’s when they were really expensive.
Long ago, soldiers in a neighboring company found a pair of night-vision goggles in the desert at NTC. They tried to keep their find a secret but the jig was up when they asked the quartermaster if he had batteries for an item not in the company’s inventory.