1. "What's for dinner?"
Reason: Self explanatory. (And under penalty of death)
Substitute Instead: "Can I make dinner?"
2. Anything starting with the words "Did you buy me that... already?"
Reason: If I already had it I would have given it to you.
Substitute Instead: "I would like to remind you..."
3. Things starting with "Where is my.... ?" or "Have you seen my...?"
Reason: I am not your mother. (Okay, I am, but still.)
Substitute: Look with your eyes, not your mouth.
4. "No, (implied sorry,) we did not make any for you."
Reason: If you are cooking for yourself in my kitchen with my food you should offer me some.
Substitute: "Mom, we are making some eggs and sausage. Should we include you?"
5. "I did not buy you a ticket to the Leonard Cohen concert I am attending."
Reason: You might not make it out alive.
Substitute: "Pack your polka dotted shirt, Mom! I am taking you to see Leonard Cohen!"