Such contradictions arise all the time. If you ask people which makes them happier, work or vacation, they will remind you that they work for money and spend the money on vacations. But if you give them a beeper that goes off at random times, and ask them to record their activity and mood each time they hear a beep, you’ll likely find that they are happier at work.

Hey, I'd be pissed off too if my vacation was randomly interrupted by beeps.