Duct tape would have been better.

I built this for my cats. There is a 120mm computer fan and a motion detector set to run the fan for 5-minutes when the cat enters the box. Kitties shouldn't have to take a #2 without fresh air, should they?

An updated bathroom in a old building at the Fairplex in Pomona

Must be a Windows-Keyboard...

the window crank in my rental home.