mik5,
instruct congregants not to bang by Haman, or even to tap their feet on the ground AT ALL … That is the right way to hear the megillah raboisai.
Not if you or your shul has a different minhag. I was very impressed with the children in my shul on Purim who banged when Haman’s name was read (and only then), and then stopped banging very quickly so that the leining could go on. Fun and good behavior can coexist.
ubiquitin,
on more than two occasions I have seen Gedolim not resort to fire hazards
How is it a fire hazard if the doors are locked on the outside (to prevent latecomers from disrupting the leining) but are still easily accessible for exit? Do you lock your front door at home before going to bed?