Yeelep, if I'm sitting in the row of seats just in front of the AFT toilets, I hope I'm not hearing/feeling the rudder pedals!
I didn't say you were. You are hearing the play in the power control unit (PCU) in the vertical stab.
I'm wondering if any NG engineers have had reason to examine the devices which stop the actual rudders and whether there are any witness marks as evidence for such a shock loading.
Again, the stops are under the flight deck floor as part of the forward quadrants. There are NO stops on the rudder.