Here’s a picture of something I spotted last year, at Bangladesh’s Dhaka airport.
It’s a mystery package, taped to the wall by the transit passenger desk in the departures hall.
Security risk anyone?
It turns out many transit passengers on an overnight stopover don’t fancy lugging all their bags to the hotel. So they stick them to a handy wall and collect them the next morning. I’m guessing that’s not allowed at Heathrow.