A hotel guest once called Ms Christine Kaelbel-Sheares at 2am, wanting to throw a party with bar service and a deejay for 40 friends within half an hour. Another guest and his wife wanted to rent Elvis and Marilyn Monroe costumes for Halloween at the eleventh hour, when rental shops in Las Vegas were already largely out of stock. Requests like these were the norm for Ms Kaelbel-Sheares when she was...