I thought of another - calling them by the wrong name!
I have done that, only I only have one child. Sometimes she'll get called "Buddy" (who is our cat) or our cat will get called by DD's name. Yesterday I was telling DH off and called him DD's name!

My Nanna had 8 kids - 4 boys and 4 girls. I'm told that when she was mad she'd go through all the names of the same gender at least once before going through them again until getting to the right name...but when she was REALLY mad, she'd go through all the kids names, boys and girls.