It's true for me but I'm self employed and work on my own projects.. I know quite a few regularly employed people I'd pin this on too, though.<p>I'd argue that it's due to the structure of work life versus home life. At (office) work, you typically have set hours and a certain set of activities to perform - the reality vs expectations gap is quite small.<p>In your "free" time, however, you expect to have a good time, yet usually have to wash clothes and dishes, cook food, go grocery shopping, and 101 other dull activities that merely wrap around the occasional fun things like watching a movie, going out, having sex, whatever. The reality vs expectation gap in your free time is gigantic for many people.