I had a boss once who did this, whenever a meeting was done before the scheduled time, he would start talking about some vaguely relevant experience or similar.

I had a boss once who did this, whenever a meeting was done before the scheduled time, he would start talking about some vaguely relevant experience or similar. When someone asked about this, he actually said that he felt responsible for not wasting everyones time, now that they were there anyway. I think he just liked having a captive audience.