Yes! There is a website somewhere that has a tonne of fake os screens - updating/upgrading windows, bsod loop etc.
Run a scary looking one of those, disconnect mouse/keyboard so it can’t be interrupted and let the boss discover it
Heat transfer kits - some have thermostats that can control the flow else flick them on manually:
Little red hatchback: Elmo Blue SUV with a big, ugly nose: Gonzo