We live across the street from a gas station. I'd rather it were a Starbucks, but it's probably better that it's not, as I would spend way too much money there. Yesterday was ridiculous with the gas prices. I woke up in the morning to see 99.4 cents a liter. I stroked myself (no, not that way) because the day before I had filled up for 95.4 cents a liter. But then a couple hours later, I noticed the price was 97.4 cents a liter. Then I showered and got ready for work and as I headed out, it was 100.4 a liter. I gave my class and came home a couple hours later and it was 96.4 a liter. Later in the afternoon, for maybe an hour, it was 95.4 a liter, and then at dinner time it was back up to 99.4 a liter. I know they fill the underground tanks twice per week at this station. But it's crazy! It's like the stockmarket - wild intraday fluctuations. Last week, when I saw it had gone down to 93.4 a liter (why the point 4? Do we really pay attention to that?) I filled up. The next morning it was 108.4 a liter. I was really glad I had filled up when I did. But it's crazy! (I guess I mentioned that already.) Imagine if milk and bread were like that and that the price might change WHILE you were shopping. This morning it's 108.4 again.
One of my students who had worked previously at a gas station told me that they get the call from corporate, and they have 15 minutes to make the change at the station. He said it was extremely challenging to do this when it was busy, as no one can be pumping gas when the change is made.