If they've just got together, they eat from Chinese take-away boxes, preferably sitting on the bare floor. If there's a man around, he'll pick her to her feet and help her run. The first meeting involves a mishap, some confusion, a mistaken identity or perhaps a collision, be it in a corridor or in a motorcar. If you win at the end, you must lose the first round. The most inarticulate detective can ask the lab to perform the most elaborate tests.
Glasses are a handicap.
When a man becomes an active hero, his eyesight becomes 20-20 and he doesn't need glasses any more. Women who wear glasses are sexually repressed. When they loosen up the glasses disappear. If they wear contacts, one will fall to the ground and everyone will drop to the floor to look for it. Coughing is a symptom of a terminal disease.