Now I am going to make some of you feel REALLY BAD....
Someone was telling me yesterday that the reason old people can be so rude is that something happens in the brain when it gets old- the effect is like when there is frontal lobe damage as after an accident ie "disinhibition" - so they say things that once upon a time they may have thought but would never have dreamt of saying.
Then again, she may just be a cheeky old jealous cow, lol!