This guy I supervise at work went on vacation all last week. By now, if someone goes on vacation for an extended period of time they know there is a certain risk.
If I'm not swamped, part of my brain automatically starts thinking about what I can do to their desk. For me, teasing is a Pavlovian response.
This guy is amazingly fast at all his projects. Every time I give him something to do, I have learned it will take about 2 hours less than if someone else did it.
That may or may not have influenced what I ended up doing.
It's nothing big, but here is the finished product: