I think I need to make a sign. When my child/ children start screaming and throwing tantrums in the grocery store I will hang the sign around my neck so it hangs at my back and people can read it. Then maybe they will mind their own business. This is what it will say:
"Please ignore this screaming child. He is in no way being abused. I am trying to teach him that his bad behavior does not dictate what I do or what he gets. We will be leaving soon. If his behavior offends you, I am very sorry. If you think you can do a better job... I laugh in your general direction. Thanks for your patience!"
Think it would work?