Time flies when you are wasting it...

I used to think that time flew faster the older you got because each successive year was a smaller part of your total life.  Now I realize that isn't the case.  The true explanation is that you never have time to do anything because realisticly work leaves you with only 4 hours of unallocated time a day.  That's because dressing for, getting to, getting from, and being at work takes most of us 12 hours.  Then you factor in the 8 hrs of sleep needed not to be homicidal and all you have left is 4 hrs.  I'm beginning to think that it's more trouble than it's worth.