Dd is 8mo and my pfb, so am willing to accept I may be being a little but precious.
SIL has recently decided that 'Big Head' is an acceptable nick-name to call DD. Every time she sees her it's "hey Big Head!" 
Now aibu to think this is horrible and DD will grow up thinking it's true?
I'm thinking I'll either start calling SIL the same name or suggesting that we save the nick-name Big Head for when she has children 
So AIBU?