Assume that, without telling you first, Clara takes a lump-sum distribution from Tim's qualified retirement plan. She receives a check in the amount of 120,000, which she brings to your office late on a Friday afternoon. She says she wants to roll the distribution into her IRA and asks you to make the necessary arrangements. She leaves the endorsed check with you for safekeeping. Because it is late on Friday, you deposit the check into your personal account. You plan to process the rollover next week during normal business hours. What ethical concern is raised by this scenario?