Energy is liberated matter, matter is energy waiting to happen. - Bill Bryson

There was a lot more joking going on when I was a kid. My dad, for instance, specialised in puns and I remember once we were on vacation in California and we were driving along the San Andreas Fault and he threw a quarter out of the window into the Fault because he said "he had always wanted to be generous to a fault".

When you come from Des Moines you either accept the fact without question and settle down with a girl called Bobbi and get a job in the Firestone factory and live there forever and ever or you spend your adolescence moaning at length about what a dump it is and how you can't wait to get out and then you settle down with a local girl named Bobbi and get a job in the Firestone factory and live there forever and ever.

What this means in practice is that if you are not a born worrier you have nothing to worry about (though of course you wouldn't be worrying anyway), whereas if you are a worrier by nature there is absolutely nothing you can do about it, so you may as well stop worrying, except of course you can't.