One morning, your friend and you go to a café and get two identical coffees. Without telling you, a barista gives you a regular coffee and your friend gets a decaf. This means you are blinded to whether your drink contains caffeine or not.
I recently had the pleasure of being asked to give feedback on a blog post on blinding in clinical trials, and how this can be done if the trial involves surgery. It was a really interesting read, highlighting how creative you have to get to conceal real versus fake surgical interventions.
For anyone interested, the full post has just been released here.
For anyone very interested, the review paper that the blog post was based upon is here.