"She also mentioned that she especially dreads “Memorial” night because 35 or so JWs would suddenly show up at 9PM (when the restaurant is cleaning up just prior to closing for the day) and the restaurant employees would practically have to re-arrange the entire restaurant (only to set it up again for the next day)."
Poor restaurant - guests are coming!
In my area, due to too many restaurants hunting for the same small number of possible guests, restaurants would be shouting for joy if a bunch of 30-40 people came in. The problem of "too many guests" would hardly be understood.