My GPU (driver?) just hung so hard that after powering it off by holding the power button and starting it again, it got stuck on fan spin and no display output, and even holding the power button didn't turn it off anymore, and I had to use the physical PSU switch to reset it.
The cause: exiting OpenTTD.
Perhaps this whole "computer" thing wasn't such a great idea after all?
Small server part of the pixie.town infrastructure. Registration is approval-based, and will probably only accept people I know elsewhere or with good motivation.