Yeah. I’d also add that goofing off isn’t ok, in the sense that it’s time that’s wasted typically on unimportant time wasters while if you could get off early you could use that time for something useful, like spending it with family or on exercise or a hobby. But you can’t do those things because you’re still technically on the clock, so spend the time on HN or twitter or whatever instead, not helping yourself or your employer.