I had worked a 9.5-hour day, so by the time 5 p.m. rolled around, I felt like I'd been run over by a bus.

I was making the rounds, making sure it was OK to head home (because, well, you never really know) and was lamenting the fact that it was only Monday, and yet I felt completely beat.

And then, I looked out the window.

The squirrels were humping.

You see, our second-story office looks out into trees and, well, we see the occasional bird or other small animal.

Today, it was squirrels. And they were humping. It was enough to turn my frown upside-down.