DEAR ABBY: My daughter and I disagree about whether it's all right to hold the door open when the air conditioning is running on high to keep the house cool. She'll hold the door open while standing in the doorway talking to her friends who drive up in a car. In the meantime, I am paying for the AC to run full blast. Please give us some guidance. -- ANONYMOUS MOM IN RALEIGH
DEAR MOM: I'll try. Rather than venture into the physics of how air conditioners work, may I suggest that because your daughter lives with you and you are paying the bills, she should have enough respect for you to do as you ask.