They also suggested having a member of staff , dressed in funereal black , preventing anyone from entering the auditorium during the final ten minutes .
People celebrating their own birthdays were encouraged to bring family and friends with incentives , such as T - shirts and party hats .
People also suggested having a member of staff , dressed in funereal black , preventing anyone from entering the auditorium during the final ten minutes .
People celebrating their own birthdays were encouraged to bring family and friends with incentives , such as T - shirts and party hats .