When units ran their own messes the orderly officer was responsible for picking up the day's sales from the officers' and sergeants' messes at closing time and depositing them through a chute in a locked safe in the guard room. The next morning the oncoming orderly officer signed for the cash and then deposited it in the local bank. At least, that is how we did it in 1 RCHA in Gagetown.
Over the years there were only two incidents that I recall. One orderly officer left the bag with the deposit in it unattended and it disappeared. He made restitution out of his pay and continued to serve, eventually retiring as a major. The second was more murky: the orderly officer reported he left the cash behind in his desk when he was attending an officer training lecture. It was nowhere to be found and he accused the regimental training building staff of theft, without proof. However, the situation was murky enough that a criminal investigation was started. Several months later he left on a less than desirable release item. Years and years after the event I asked the officer who was the adjutant at the time about this. He told me that the young man had some fairly heavy debts that were discharged several months after the loss, and an extensive investigation failed to reveal any legitimate source for his windfall. He was given several options, none good, and elected to accept a release along with recovery of the cash from his return of contributions and pay accounts.
