I once long ago worked in the incoming mail department for are insurance company. It was basically data entry.
Thing was, there wasn't enough work.
There were two teams of five, plus a supervisor for each team, and a manager above them.
So what would happen was, we would arrive in and go to our spots, a few minutes later the main would arrive. Most days there was 100 pieces of mail to process, a really busy day may have twice this amount.
Even the most complex items would take me 10 minutes to process. The bulk was around 3 minutes, given the above, could personally have processed all the mail on an average day, with 3hrs to spare for complications.
On an average day, I got in the order of 30-40 minutes of work.
On slow days, it was more like 20.
I started coming in late, sleeping at my desk. Wandering around, going up to the upper management offices and the roof.
I eventually got fired, after months of this behaviour. Not because I was underperforming, no! I got fired, because I was "effecting the moral of the team"
I can see the point of why I was fired. I was an arse, I wasn't suitable for the role.