This happened to a friend.
Boarding a loco, dozens of tagged trolley bags waiting to be taken to the hold as no overhead locker space.
Two young males board and ask the Cabin Manager:
" Hello, we were asked at check-in to volunteer to put bags in the hold"
"Ok, what can I do for you?"
"Well, which one would you like us to take first?"
They thought that they were expected to carry bags down the stairs to the hold. How sweet