Once when I was working in Singapore I checked in to a hotel in the afternoon, and put the chain on the door when I went to bed. Around 11 PM the door opened as far as the chain would let it. I walked up to the door and observed the situation as a member of a family in the corridor tried to trick the chain in to letting them in. After about five minutes of that I pushed the door closed which lead to to a few “woha” like statements from the other side.
But in this case I assumed the hotel mucked up and allocated my room twice.
