I spend alot of time with my 81 yr old mom. She is generally even tempered. But, every now and then she goes from even tempered to angry, in short order, over nothing. She is fixated on money, hers mine, yours, makes me crazy! One minute she says she has enough money to buy a Mazda meyata, the next she's yelling at me for wasting gas, while taking her to get her social security stuff filed. Thoughts?