A former co-worker of mine had a little 20 gauge Ithaca Flues "Bird" gun. It had been ordered special from Ithaca by his left-handed uncle. They neither reversed the trigger placements nor the choking, but simply "Twisted" the trigger faces to the left in this instance. If you will note on most doubles the triggers have a slight twist to the right, this one had it to the left.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra