My own kids drive me nuts with this...only my 2 and 4 year old have learned from my teenager to call me "Mom"...no more "mama" or "mummy"...just "Mooommmm" like a teenager. So I hear about 14 million times per day "Mom mom mom mom mom".
Or there's mealtimes, when I feel like my head will spin off somedays..I have one saying over and over and over "I want some milk please" and another saying "I dropped my spoon" and a third saying "I don't like green beans"...etc etc...it's like a chorus and they all just keep repeating and repeating and repeating! Some days I feel like laughing...other days I feel like screaming!