I'm glad you were able to get your BM back. That loss would've hurt!
I'm an Appraiser, and often have to go into public Government buildings. I forgot to take a small Buck that had been engraved and presented to me for being in a wedding out of my pocket at one particular podunk courthouse here in central Michigan. The two dickheads working security were adamant that I return to my vehicle, and secure my "weapon."
It was quite a stroll back to my car, so I walked out the glass doors and set it off to the side of the entrance by some rocks, semi hidden unless someone was looking for it, and walked back inside. I had done this before at different courthouses with no problems. They were like "Sir, we can't be responsible if something happens to that knife." And I replied, "I'm only here to pick up a couple copies that are waiting for me, probably less than 5 minutes," and walked past them.
I did what I had to do, walked outside, and sure as shit, the knife was gone. As I look back inside, these two assholes are smirking at me. I walked back, and said, "That knife was an engraved present. Is there any chance you guys know what happened to it?"
"Nope. We told you we couldn't be responsible if something happened to it." I told them thanks with an extended finger, and hope they cut themselves with it. Amazing how a little authority can turn some into true pricks.