The Huffs -
When your Corelle dish(es) breaks and falls on the floor, you will spend a very long time picking up and vacuuming thousands of Corelle pieces of dinnerware. I counted and there are that many!
Glad to see that you've taken precautions with your dishes and the rear kitchen. It's not so much the slipping of them as the bouncing that is the major problem.
The pillows will help - we've used them not only in the cupboard but also in the microwave. Unless your DH has picked up Corelle fragments, he shouldn't think it's a funny idea!
Oh yes, any leftover pillows are used on our bed and couch.