My related pet peeve is a failure to give a good error message when the disk runs out of space. This often manifests in multiple applications failing silently or with cryptic error numbers. Sometimes you can't log in to the computer, the password is accepted but you're returned to the login prompt with no error message.
I've learned to immediately suspect disk exhaustion when I'm experiencing unexplained failures, but in the past it's taken me forever to figure it out.
I remember spending an afternoon figuring out why Docker images stopped building with legitimate errors because it ran out of disk space. It never even occurred to me to check and I found the virtual disk was full by accident.
I've learned to immediately suspect disk exhaustion when I'm experiencing unexplained failures, but in the past it's taken me forever to figure it out.