Ha.
The other day I was showing a “junior” how to vent a part. Made an underlay, then an overlay to clean it up a bit. Turned out to be a weird looking shape, the combo of the part, vent and sprue. Pretty basic though.
Couple three days later I take the underlay, flip it over to write some notes on the clean side of the sheet. Walk over to IT because the notes were about a bug in an app we developed. Standing there the director of IT saw the back of my notes from across the room and was most impressed with my chicken scratch sketch.
Go figure.