a group of people, restrained by fencing, wait at the entrance to a tent; there are signs at the entrance that read' tent closed'.
Some people are behind a fence.
That suggests a new answer to a question I raised in this space a few months ago, namely  My suggestion then was that the lock resolves a conflict between you (who believe that a hot fudge sundae is worth the calories) and your mate, or potential mate (who believes otherwise).