It's hilarious that the "too lazy to empty the trash bin" behavior can scale like this. Worst case for me is I pick up a couple things that fall when I empty it. For them... well as you said it doesn't appear emptiable!

I was skeptical this cat shelf design would hold, but I picked one up and for the last year it's been my cat's favorite thing. Highly recommend them. Just make sure the suction cups aren't warped, you put them in hot water, clean the window, follow all instructions etc.