When we sold our 5th wheel a number of years ago the buyer wanted to pay cash - since I didn't really want to carry that much cash, and it was going partly against the outstanding lien anyways, I suggested we meet at the bank where the loan was drawn on, Scotia. I called ahead of time to inquire about being able to get a loan clearance letter while we waited and the person I was speaking with asked how much money I was talking - it was around $8K IIRC, a portion of which I'd be walking out with, the remainder going against the loan to clearl the lien.
The lady on the phone almost freaked out and said more or less "You really shouldn't come into the branch with that much money!", at which point I was all like...uh, are you not a bank? Do you not take cash?
It was at that point that I discovered banks don't actually seem to like cash anymore. But dude that was buying the trailer was oldschool and did cash, and only cash, so eventually we just showed up, but as we were counting it out with about 4 bank employees clustered around the wicket looking intently and whispering amongst themselves, I can't help but feel like we were doing something wrong.
Not the smartest criminals in the world, taking questionable cash to a bank.....