Who remembers the Air Nippon 737-700 incident where the copilot was trying to let the Captain back into the cockpit and accidentally mistook the rudder trim wheel for the cockpit door switch? The pilot ended up putting the aircraft in a 30000ft/min descent with almost full uncommanded rudder deflection.
Unfortunately I can’t post links because I’m below 10 posts but
a quick Google of ANA 117 will come up with results.