Nearly ran out of gas

I look at my gas gauge this morning and discovered that I had burned nearly a full tank of gas last night. Yeow.

At first I thought that somebody might have been siphoning off the gas. I have a locking gas cap though, which made that unlikely. After crunching the numbers, I realized that this amount of gas consumption was not unreasonable.

Still, it was a lot. Yeow. I'm glad that I didn't run out without realizing it. What can I say? It was late at night.