Your t-shirt reminded me of a conversation with my wife. I told her I have a hard time on remembering all of my clients, and I should try to get photos somehow of them when I’m working with them on their projects (engineering) so I’ll remember them better. My wife thought that was a bit odd, but then said something like - “Well, my Gynecologist has a photo of all of her patients in the file”.
I paused for a second thinking and replied “How does that help her? They all look the same to me!”