In the photo of him on his last day [0], there's a cassette deck on his desk.

That could be something mundane, but I'd like to believe something crazy happens if you yell at it [1]...

[0] https://www.brendangregg.com/blog/images/2025/brendanoffice2...

[1] https://www.youtube.com/watch?v=tDacjrSCeq4