When I have tissues and toilet paper on my bedroom floor, I pick them up. If they're wet, that means I used them to blow my nose, if they're crusty, that means I used them as a napkin, if they're stiff, well-
Fingers were carrots so when Circle boy caught its fingers between the door they fell off.
Luckily they grow back,sadly, they didn't grow back in time to shoot the movie.