With full-size fireproof safes available for $2-300, it's unlikely that the registers contained the previous days receipts. It's more likely the money in the registers was the next day's opening bank and was likely between $50 and $100. Each owner lost a window and a cash register because they didn't have a system for providing the opening employee with a fresh bank that didn't involve leaving it in the till. At closing, the register should be left with the drawer open and the empty tray standing up in view of the front windows; not to protect the opening bank that you would otherwise leave in the cash register, but to protect the much more expensive cash register and windows.
