Anxieties were already running high inside JPMorgan Chase last month, days after top leadership announced that employees would soon be required to work in-office full-time, when an executive found himself responding to a question about another contentious issue at the bank.

CEO Jamie Dimon said he regretted cursing during a recent company town hall but stands by the importance of the company’s new return-to-office policy.

Worker who questioned Jamie Dimon’s RTO mandate says he was fired—then told he could keep his job—after testy town hall exchange