The simplest strategy for bouts of noxious flatus is to not care. Or perhaps to take advantage of a gastroenterologist I know: get a dog. (To blame.)

The terms "idiot" and "lunatic" were acceptable diagnostic terms in England up until 1959. "Imbecile" and "feeble-minded person" were, likewise, listed as official categories in the 1913 Mental Deficiency Act. England has always lagged a bit behind in discarding outdated terms for the disadvantaged. When I was there in 1980, it was still possible to shop for used clothing at the local Spastic Shop. That is, compared to the United States, where it takes, oh, about twenty-five minutes for a diagnostic euphemism to become a conversational faux pas.

In 'Packing for Mars,' I tried to convey the importance of getting young people interested in science.

I am very much out of my element here. There are moments, listening to the conversations going on around me, when I feel I am going to lose my mind. Earlier today, I heard someone say the words, "I felt at one with the divine source of creation." Mary Roach on a conducted tour of Hades. I had to fight the urge to push back my chair and start screaming: STAND BACK! ALL OF YOU! I'VE GOT AN ARTHUR FINDLAY BOX CUTTER! Instead, I quietly excused myself and went to the bar, to commune with spirits I know how to relate to.

Worry lives a long way from rational thought."---Self

Viagra does have a physiological effect, but it doesn't make women feel aroused. Nowadays, researchers are looking at drugs that affect the central nervous system rather than blood flow to the genitals.

In my experience, the most staunchly held views are based on ignorance or accepted dogma, not carefully considered accumulations of facts. The more you expose the intricacies and realtities of the situation, the less clear-cut things become.