Instead of saying 'Excuse me', he prefers to glide by one side.
To most Afghan eyes, watching heavily guarded foreign aid-workers glide by in their Landcruisers, it is obvious that much of the money is going straight back out of the country.
Dr. Dial says some of his most important observations have been made watching a bird glide by while he is fly fishing, and then heading back to the lab with a new theory to test.