I do know from personal knowledge speaking with friends that were/ are guards they had to ban oversize thermos bottles. People would use a small insert and have space in the bottom. They were used for small parts, stocks and stuff. If anyone was ever caught with anything that usually had a serial number they were detained by the guards, using S&W handcuffs. All Supervisor's were notified. Springfield PD would be called and the person arrested. Smith & Wesson had a very strict policy about theft. You would loose everything. If a guard let something slide, they were fired. I do know of people that were fired.

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Don Mundell