I did that to an overzealous sysadmin who wouldn't see the light about why a 30 minute password lock policy after three failed interactive tries with horrendous

I did that to an overzealous sysadmin who wouldn't see the light about why a 30 minute password lock policy after three failed interactive tries with horrendous complexity requirements was a bad idea. Typed in his email address in front of him, hit enter three times, locked him out. Since this was a military base, typed in the commanding officer's email address, started to do the same thing, and suddenly the sysadmin saw the light shine down from heaven.