Below is an excerpt from my book I Used to Be French: an Immature Autobiography. You can buy it on amazon here.
Anyway, on that first hitching trip to Sweden, I had some hard times because I looked ordinary. Hitchhiking long distance, it turns out, serves to steel you against a childish sense of injustice that lingers long after childhood among some people. On one occasion, somewhere in the northern Netherlands, I had been standing on the side of the road for two hours when two Highlanders in full kilt regalia including furry sporran passed me and politely started signaling from behind me. (That is, they took their proper place in the queue.) Soon, they were followed by a guy in complete white Saharan outfit, with turban, white flowing robes, and all. The Highlanders were gone in ten minutes. Before the Saharan got picked up, he had the time to confirm that he lived in Paris, that he did not dress that way to work or university, and that he had bought the outfit for the specific purpose of hitchhiking to Sweden to meet girls. I felt under-dressed in my plain cotton pants and my short-sleeved blue shirt. Later, I made myself understand that my travel slowness was not a result of bad luck but of inferior knowledge and skills.