cats

No matter what we try he won't stop scratching the wall next to his litterbox while trying to bury his shit. The only thing that works is physically blocking him from scratching the wall, but the only thing I can think to put between his box and the wall is a shoerack, which I would really like to be able to use without the risk of shoes falling into his litter. We're in a small apartment so working with very limited space and can't just have it pulled away from the wall. Just wondering if anyone has any ideas on what to replace the shoe rack with