She's always been a bit... odd, but her comments seem to get worse as she gets older (nearly 70).
She's visiting us at the moment (only happens once or twice a year) and she announces to my DCs that she liked going over the hills in the car because "it feels nice down below"! Fortunately DC are young enough that they hadn't got a clue what she was talking about and they were distracted by something else anyway. But i heard it and have added it the list in my head of other weird shit she has said.
One example: That DH will find somewhere else to "dip his wick" if I don't get my act together. (I had severe PND)
Add this to her loud shrill voice that goes right through me, her negativity and her insistance of being correct all the time and I find her a very difficult person to be around. Only 5 more days to go.