David* was an hour late to his dad’s birthday dinner. They had booked to celebrate in a restaurant in London on a Friday night, where the 23-year-old thought he’d be free from the shackles of work. However, just when the investment banker believed he was done for the day, an urgent request from a client came in, meaning he had to remain chained to his desk far longer than he would have liked to at the end of the week.

“I also had to leave the dinner early to go back to work,” David recalls. “I finished in the office at 2.30am that day.”

The Telegraph London