Hi Meccano,
I'm afraid one of these guys could kill a lot of people for real.
I've seen it several times in the sim - but only on the Airbus.
I believe it's because even with excess full rudder held to the stops, there is no roll input required to level the wings. The only visible effect is the Beta target will be slightly off centre.
With the extra leg force applied to the rudder stops, there is no change felt initially if the wrong trim is applied. The manual trim is slow, so the pilot waits patiently for the load to be reduced as he continues to apply the wrong trim.
Eventually the penny drops, and the correct trim is applied.
The only effect is to delay the engagement of the autopilot.
No one has come anywhere near to crashing the sim.