Eddie Van Halen is interesting to read about. It's tempting to dismiss him as a "hair metal guy", but he was actually frighteningly intelligent. Read up about his equipment experiments.

As a VH fan I researched the origin of this story. Results at the end of this article in it: https://snackstack.net/2023/07/03/in-search-of-van-halens-br...

Big believer in this tool. It brings pride and even further diligence to the conscientious reader. And in the case of the slacker, a silent knowing without shaming them, which rarely helps performance. Instead, you can manage the situation stealthily.