This is so funny because I everyone in my family laughs because my granddaughter who is 2 now calls me "Rosie", mind you my name is Dana(LOL).
When I found out my daughter was expecting, and me being only 42 I didn't want to be called grandma, so I tried to come up with different names. I decided on the name Noni, don't know why, but since my grandbaby lives with me she first started calling me "Momma" and her mother "Mommy", now for some reason I'm known as "Rosie". the whole family laughs, but I answer to it.