Your garbage disposal. The forgotten appliance. It's tucked away under the sink, ready and willing to churn up what you toss down. But it doesn't really matter what you toss down, right? Wrong! While beneficial with some food items, there is a handful of objects you should never ever toss down the disposal. If you do, you'll need to give us a call sooner rather than later because your garbage disposal isn't working, or has completely broken down.