911, The Number Will Never Be The Same

I photographed this sign  in a catering hall recently.  It says that the hall holds 911 guests.  I presume it means that they calculated according to a larger number that includes staff, waiters etc, for insurance reasons. 

A couple of years ago, we were treated to a Shabbat in Tel Aviv, in a fancy hotel.  At first our host told us he was sorry, but the hotel had been fully booked.  Then we got a call that one room had emptied, and it was for us. What was the number? You guessed it, 911.