Had business trip to georgia then came back to hurricane sandy wiping out my area. I live a mile from the ocean by NYC, most of my area was flooded without power for 4 weeks and couldn't charge phone and no gasoline at stations to get anywhere. I refunded money as soon as I could log on to paypal.
A few years ago, I went to the gym for several months and lost 30 pounds. That must be worth about 1% more fuel economy in the city.