Many old people have at least one "personality disorder."
This is because their brains are deteriorating from years
of bad habits, participating in the psychodelic drug decades,
unprotectected sexual behavior, watching far too many
'Oprah' shows and other TV. As their asses get wider from
riding the Walmart motorized handicapper shopping carts,
so their brains get smaller and dysfunctional.
Please, honk your horn if you see an old person and do not
get overly upset if they drool and shoot you the finger
because they're only endangering themselves by dividing their
concentration - and hopefully their accident will be fatal,
thereby reducing the Social Security and Medicare budgets.
"Old people are the new Jews!" -- GOP and Tea Party