Photograph everything before you open it. Ten seconds, settles most disputes.

How do you tell the difference between the drug working and just a good week?

This is the correct amount of effort for a thread like this.

Bring a list. Embarrassment makes everyone forget things, including you.

Function over score.

Test one thing at a time. It feels slower and it is the only way to learn anything.

An inconclusive account is useful if it stops the next person mistaking a story for a controlled comparison.