Doorstop

Can't get enough of it, you know.

My mom doesn't remember this, but we used to have a dog, Dusty, whom I know would purposely kick the doorstop on her way downstairs. The reason I knew she kicked it intentionally is because the doorstop was on the far wall in an out of the way spot. If she was taking her time to go down, i.e. not rushing to meet someone at the garage door, she would take the long way. And after she'd kicked it, she would keep on walking, like she was expecting the sound, not surprised at all. I'd seen her do it a few times, but more often than not, I would hear her doing it.