By the time we left England, and I embarked on a rather erratic education at a random sample of schools in America, Ireland and France, my father had manfully shrugged off his disappointment over the chimp experiment, and begun training me as an ethnographer instead. I was only five, but he generously overlooked this slight handicap: I might be somewhat shorter than his other students, but that shouldn't prevent me grasping the basic principles of ethnographic research methodology. Among the most important of these, I learned, was the search for rules. When we arrived in any unfamiliar culture, I was to look for regularities and consistent patterns in the natives' behaviour, and try to work out the hidden rules - the conventions or collective understandings - governing these behaviour patterns.
Eventually, this rule-hunting becomes almost an unconscious process - a reflex, or, according to some long-suffering companions, a pathological compulsion. Two years ago, for example, my fiance Henry took me to visit some friends in Poland. As we were driving in an English car, he relied on me, the passenger, to tell him when it was safe to overtake. Within twenty minutes of crossing the Polish border, I started to say 'Yes, go now, it's safe,' even when there were vehicles coming towards us on a two-lane road.
After he had twice hastily applied the brakes and aborted a planned overtake at the last minute, he clearly began to have doubts about my judgement. 'What are you doing? That wasn't safe at all! Didn't you see that big lorry?' 'Oh yes,' I replied, 'but the rules are different here in Poland. There's obviously a tacit understanding that a wide two-lane road is really three lanes, so if you overtake, the driver in front and the one coming towards you will move to the side to give you room.'
Henry asked politely how I could possibly be sure of this, given that I had never been to Poland before and had been in the country less than half an hour. My response, that I had been watching the Polish drivers and that they all clearly followed this rule, was greeted with perhaps understandable scepticism. Adding 'Trust me, I'm an anthropologist' probably didn't help much either, and it was some time before he could be persuaded to test my theory. When he did, the vehicles duly parted like the Red Sea to create a 'third lane' for us, and our Polish host later confirmed that there was indeed a sort of unofficial code of etiquette that required this.
My sense of triumph was somewhat diluted, though, by our host's sister, who pointed out that her countrymen were also noted for their reckless and dangerous driving. Had I been a bit more observant, it seemed, I might have noticed the crosses, with flowers around the base, dotted along the roadsides - tributes placed by bereaved relatives to mark the spots at which people had been killed in road accidents. Henry magnanimously refrained from making any comment about the trustworthiness of anthropologists, but he did ask why I could not be content with merely observing and analysing Polish customs: why did I feel compelled to risk my neck - and, incidentally, his - by joining in?
I explained that this compulsion was partly the result of promptings from my Inner Participant, but insisted that there was also some methodology in my apparent madness. Having observed some regularity or pattern in native behaviour, and tentatively identified the unspoken rule involved, an ethnographer can apply various 'tests' to confirm the existence of such a rule. You can tell a representative selection of natives about your observations of their behaviour patterns, and ask them if you have correctly identified the rule, convention or principle behind these patterns. You can break the (hypothetical) rule, and look for signs of disapproval, or indeed active 'sanctions'. In some cases, such as the Polish third-lane rule, you can 'test' the rule by obeying it, and note whether you are 'rewarded' for doing so.