More excellent shame from the bunnies of Alison G.! Here's her theory:
This is Baxter (white fluffily bunny) and Hobbes. I believe what
happened is that Baxter, who is elderly and partially disabled, did the
poop (he does these big mushy ones now and then), and then Hobbes
stepped on it and then flicked his foot to get it off, and it flew up
onto the wall, sticking the landing.