This morning was a brutal one. I went to bed at midnight, slept for a couple hours because I was anxious, and then left at 4AM to catch a flight. We boarded seamlessly, kicked back from the jet bridge and were on our way.

Then a sensor was dirty, so we turned around. The pilot anticipated a quick conversation with the maintenance team. Then he expected a fifteen minute delay to lube it (don't ask, I don't know either, other than that they used the exact word 'lube,').