<prompt> Human: I started a 4-days-a-week job last week, but this week my boss decided to change it to a 5-days-a-week job. I feel like my boss changed the terms of the job ex post facto. What should I tell him?  <response>: Tell him your understanding was that you agreed to a 4-day-week job and work something out. If hes adamant about 5 days and thats not acceptable to you, start job hunting again. A decent compromise may be doing 9-hour days and taking off every other Friday, for example. Your boss gets 81 hours and you get a extra workday off free. But I dont know your situation; if youre watching your kids on Fridays or something, then stick to your guns and work 4 days a week. 