Can't imagine the public reaction to every stupid thing I've ever said in private.  But, man, this one was a doozy.  And if it's true she accidentally made her comment public, then that's got to be the dumbest thing she ever did.  All said, you've got to be a little bit mean at heart to make fun of an overweight old lady.   Perhaps she'll run into some snarky 20-something when she is in her 70s, and the karmic balance will be restored.