Speaking about Japan (Nipon), I had a rather unique experience once. In the 70's on a military flight we made a refueling stop in a Tokyo airport and I noticed that the effect of my deodorant was starting to go away, so I bought some spray-on stuff and washed up and used it. Then on the way to the boarding area we had to pass in front of dogs that smelled for drugs, and one of the dogs started barking on me, which I'm attributing to the freshly sprayed deodorant. I was then ushered into a restroom where they performed a strip search on me and went through all of my baggage. Finding nothing I was returned to the boarding area where everyone kept a suspicious eye on me.

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