i've had 2 strange experiences
first was in a public toilet in an office building where i went in alone quite late at night to pee
all the cubicles were empty except for one where the door was closed
as i was peeing, the toilet flushed and the door opened but i didn't see anyone after i finished peeing and turned around
the toilet entrance door was also closed and i did not hear it open and close
at that point i didn't realise anything until i went to wash my hands
when i was at the sink, the tap which was the old press button type turned on and water flowed out
my hair stood up and now as i recall my hair standing again
at that point i remembered someone telling me to try to act normal in such situations and get away
so i proceeded to quickly wash my hands. then i blurted out "thank you" and left the toilet and the building
second time was at a hawker centre where i went to wash my hands after eating chili crab
it was in public area with many people, not in toilet
the tap turned on after i soaped my hands and was reaching to press the button
heng nowadays most places have sensor tap so auto turn on also won't trigger my hair standing riao