If you're in an office full of over-worked journalists, the coffee drinkers are the ones to trust:
According to a recent study, caffeine helps you resist pressure to act unethically at work.
Oh, alright then. It's more complex than that. The research quoted is actually showing that being tired and over-stressed is a significant contributory factor in making unethical decisions in the workplace.
Something, perhaps, for the journalism business to bear in mind as its ethical behaviour comes under ever-closer scrutiny.