I think I'd rather not know...

Can you see that? As I was glancing out the window this afternoon, I spied a perfect imprint of a dirty foot on the side of the window seat.

Here...have a closer look. It's not very dark.

Honestly, I think I'd rather not know how it got there. I'll just assume "someone" (do you have one of those "ghosts" around your house too?) was sitting sideways on the window seat and propped their feet up.