Originally Posted by
Vessbot
How often is this trained?
Trained for captains at my company, never for FOs. In fact, having your hand on the sidestick when not PF will result in a thorough debriefing after the flight, as I found out to my cost when joining from another operator where PM covering the controls at critical phases of flight was routine. Though don't get me started on the other pilot resting their size 12s on the rudder pedals when I'm flying...