One of my pet hates is meetings without an agenda, or that don't stick to the agenda.
If you're done with the agenda, then the meeting is finished and everyone can leave. If that happens after 5 minutes, then that's good.
I have been in meetings where the organiser has said "well, we've finished, but we've got this room for an hour, so let's just hang out for the rest of the time". That can be tough to respond to. Just saying "Sorry, but no, I've got work to do" can be offensive (though it shouldn't be).
If you're done with the agenda, then the meeting is finished and everyone can leave. If that happens after 5 minutes, then that's good.
I have been in meetings where the organiser has said "well, we've finished, but we've got this room for an hour, so let's just hang out for the rest of the time". That can be tough to respond to. Just saying "Sorry, but no, I've got work to do" can be offensive (though it shouldn't be).