My favorite running-out-of-gas story:
Back when I was 17, I got up early on a Sunday morning because I had forgotten to purchase my dad a Father's Day gift. I drive to the ATM and instead of filling up at the gas station right by the ATM, I decide I'm going to drive about two miles down the road to another gas station which is cheaper and also on my way to the local megastore.
I run out of gas. I have to knock on a stranger's door (I was right by a residential area) and wake my dad up at 7:30 a.m. on Father's Day so he could get gas for my car. I felt like such a moron.