ประก Quick Fixes for Mom Calls are a thing now, folks. Here are some:
Just say that, and she'll be like, "Oh, okay, I won't bug you, I guess."
Same as above,ประก just with a different tone of voice.
She'll be like, "Okay, prophets of doom, just get back to me when you're done."
These are just a few examples of what you can use in a pinch. Just remember, Mom's always right, but sometimes you can't have it both ways.