My kids were about 8 & 10 when my husbands Step Mom had her first "real grandchildren". She had been Grandma to them since the day they were born and she very excitedly announced in front of everyone, including the kids; I finally have my own grandkids. My kids were very hurt and our relationship with her pretty much ended right then and there! The sad thing is that she has absolutely no clue that saying that would be wrong or hurt anyone's feelings. FIL died over 10 years ago and we haven't seen her since.