"Don't lean on your hand. God will get mad."
"Don't sing at the table. God will get mad."
"Don't play with your food. God will get mad."
The husband told me he was told similar things as a kid. Just not the part about "God will get mad." His parents usually said something like: "Don't lean on the table. That's not polite."
Since the Mama had to remind me more than once about not doing certain things at meal time, I must've figure God wasn't mad at me at all. And, look, I still sometimes play with my food.