Whenever you can’t sleep. Count sheep.
How many of us have learned from our parents to fall asleep simply by counting sheep. But usually the sheep or I became distracted soon enough and either the sheep or my thoughts started to run away. Drawing lessons from my nightly attempts to find sheep, I tried not to disturb them, or my thoughts when trying to photograph them. I did not count them however. Because that was the reason they were not gone instantly 😉