Probably it was best to follow the old army rule of keep the mouth shut, never volunteer, no explanations.
It would be good to not say anything.
Next door is the Hong Kong Space Museum and Theatre (open Monday, Wed?­nesday Friday 1 9pm; Sat?­ur?­day, Sunday 10am 9pm; closed Tuesday; admission HK$10 adults, HK$5 children; separate admission to theater).