Everyone has had it.

Where you get a pebble or something small in your sock that irritates your foot with every step.

That was this morning.

I spent about 4 minutes taking on and off my sock trying to locate whatever it was that irritating my heel.

I didn’t locate it, but after taking the sock on and off three times it was gone.

I had to turn the sock inside out and sweep the whole of it with my hand before it felt fine when I wore it.

Robots did not help.