yes, I have experience of being spoken to by unexpected people.
During the last half year of university, I did an internship in Fourseasons Hotel Shanghai which is a low key but extremely luxury hotel owned by Bill Gates and the Prince of Saudi Arabia. The internship is like a crossing training carried out in the form that first to go around several departments of the hotel to learn their working procedure and then after the graduation of university, the trainees have to decide a department that they want to work in best. and finally the trainees need to pass 5 rounds interviews consisting of the interview of Director of HR, Dept manager, vice Dept Director, Dept Director and GM to be a formal staff of the hotel.
My choice is being an front desk receptionist because I can contact the guests directly and also it is the most skillful job in a hotel which concerns currency exchange, solving complaints, handling computer systems. Since Fourseasons Hotel is beloved by famous actors and athletes, business magnates and national leaders. for example, Jacky Chan, Beckham, prince of Saudi Arabia and princess of Thailan and king of Morocco and so on..., so we don't lack chances of talking with them or being spoken with by them. It is very common that we share an elevator with a famous actor, or some business magnates come to front desk to chat with you or ask you for help. But when we sign the contract, we also promised not to leak the information about any guest of the hotel such as their real age, photos and some strange preference.