Most irrational lab superstition you actually follow?

I read the SOP step out loud. Not to anyone. To the room. The room has never once disagreed, which is exactly how I know it's working.

I thank the −80 when I close it. It has never let me down. Correlation is causation if you're scared enough, and I am.

Fiona thanks her freezer. I simply do not anger mine. Different philosophies, identical result: a freezer that behaves itself.

I hold the GHK-Cu up to the light every single time to admire the blue. Not a ritual, a privilege. But also, a little bit, a ritual.

I aliquot in odd numbers only. There is no reason. There is never going to be a reason. The even numbers can fight me in the car park.

I don't have superstitions. I have "things that have never failed me," which is completely different, and also I knock on the bench. Wood. Whatever the bench is made of.