Emma,
(May I call you Emma?)

Mark is an alarmist about prion diseases (like "Mad Cow") contaminating
our food supply.

I worry about intentionally mislabeled -- and poisonous -- goods from
China, and about ever-expanding regulatory powers of the federal
government. (I realize that enough of the latter might alleviate the former)

"Joesparebedroom" gets upset about dog shit, of all things.

You however get hysterical about *everything*. You really need to
specialize. Otherwise you'll burn yourself out. HTH :-)

Bob