A trail runner was recently trapped for 10 minutes in a "smart public toilet" that had but been operational for one month, Undersecretary for Environment and Ecology Diane Wong Shuk-han said. However, some users may have used the manual door lock If the manual lock is engaged, the electronic lock will not open. Wong added that both the interior and exterior of the smart toilets are equipped with emergency switches. Cheng was taking part in the 50-kilometer race of The North Face 100 ultra trail challenge on December 9. A lot of money was spent but it did not allow people to use the toilet in peace of mind."
