My Mom !!!!! 92 years old and she can be the rudest person in the world, and she is so deaf she doesn't realize she is saying it loud enough for everyone in the room to hear.
She thinks its especially funny to comment on overweight people. - and these days that is most of, ummm... us.
It isn't nice at all and its embarassing to me when she does it. Now to be clear, she is pretty senile and does not know she is offending, but I get a lot of looks.