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Blessed IOHIDeous, Who Waits for You to Log Out
Patron of mice and keyboards, drivers older than their users, and people who only shut down their Mac on New Year's Eve.
Life
On the last day of 2017 the researcher Siguza published, without warning Apple first, the details and exploit of a flaw in IOHIDFamily, the part of the macOS kernel that talks to mice and keyboards. It allowed reading and writing kernel memory and switching off SIP; according to its finder it had been there for at least fifteen years. Patient as few others, the exploit struck at logout, reboot or shutdown.
Prayer
O Blessed IOHIDeous, who waits in silence for the user to leave, let our input drivers read nothing but keystrokes. Amen.
How to celebrate
Celebrated by updating macOS as soon as Apple ships the fix, and staying logged in past midnight just to spite him.
Log out on New Year's Eve, and someone else stays for the party.