Czar,
Funny thing you brought that up. Ive been thinking on the subject myself lately. I remember the same thing when i was a kid. At one district assy. in North Carolina, one of them dressed up like a brother (suit, tie, ect.) and stood by the backstage right before they introduced the new speaker, and walked up to the podium when they introduced the speaker. Everybody (exept for the real speaker) thought it was the speaker. He started out in a normal fashion (no screaming or yelling) untill he said an anti-JW word or something, and two or three brothers ran up and grabbed him. Then he started yelling and kicking, and screaming, as they dragged him off stage. Ahhh i still remember the buzz over that one. I bet they talked about that for years.
Mostly i remember several protestors that would stand around yelling at everybody usually on thier way into the assy. hall. It always kind of un-nerved me, yet there was always something exiting about it all. I don't remember seeing any in the early 90's (i left in 93) Someone said earlier on this post that they still get out?