Reminds me of a Command Accounts inspection at Innsworth - Wives Club books recorded an item " Profits from Ann Summers Party". Two of us suggested to the WRAF (as she was then) officer on the team that she might ring the Chair Person (ie Mrs Staish) to check all the money was accounted for from said party - we relented (realising how humourless was the then Staish), and stopped her just as she lifted the telephone! Slowly realisation dawned, and we had to buy her a drink or two that night.