This is not be relevant to the topic, but if you need a laugh -- Niles and Frasier and the garbage disposal. For the record, I too have a healthy respect/irrational fear of having to reach into a disposal.
I have the same feeling towards garbage disposals. It began after I read "Fire Starter" by Stephen King, which includes a very graphic scene involving a garbage disposal. I can't remember if the scene was in the movie, but just reading it changed my view towards disposals.