Today I wanted a piece of walnut bread.
It was already 11.30 am and I hadn't eaten anything for breakfast. I was under the impression that the walnut bread was sweet, and I felt uncomfortable eating sweet walnut bread with a cup of tea first thing.
So, I thought I should have something 'proper' to eat first. So, I made a sandwich. I opened a small drink. When I finished my sandwich, there was still some drink left. But the drink was not going to suit the walnut bread. So then, I thought I should have a little snack to finish off the drink with. I ate the last of a packet of chips we'd opened the night before.
Finally, with the sandwich eaten, the drink drunk, and the chip packet in the rubbish bin, I decided it was time that I could now consume the walnut bread. I made a cup of tea also.
I took a bite of the walnut bread and realized instantly that it was savory, not sweet, and had totally rendered my previous 'shoulds' redundant.
I ate at least 500 should calories for absolutely no reason.
What 'should' did you do today that you can see was totally pointless.