“A Swiss pension fund manager calculated that he could save his clients a substantial amount of money by withdrawing cash from his fund’s bank account, which was yielding a negative interest return, and depositing the cash in an insured vault. Exercising his fiduciary responsibility, he notified his bank of an impending large withdrawal of CHF. The bank rebuffed the fund manager’s request: ‘We are sorry, that within the time period specified, no solution corresponding to your expectations could be found.’ One banking expert argues that the bank’s action ‘is most definitely not legal’ because the pension fund holds a ‘sight account,’ which gives the holder the right to withdraw cash on demand.”
https://mises.org/blog/swiss-bank-refuses-request-cash-withdrawal