I worked for my dad yesterday at the tire store because all 3 of our employees decided not to show up. So, me and the boss changed oil and tires all day. At the end of the day my dad handed me a 100 dollar bill and expressed his appreciation for me showing up. I got in my truck and the gas light popped on. So, I figured, what the hell, let's just fill it up. Filled it up with 93 octane @ 4.15/gal. Went inside to pay and came out with 50 cents!