Have you ever randomly bumped into someone you knew from home while travelling?
Yes, but first a little background.
From 1960 to 1920 (two years) I studied German in high school because I was probably going to be an engineer, and my high school counselor said it would be good for me to take it since it was a technical language. I didn't use it for 25 years until, in 1987, the dialysis equipment company I was working for sent me to Europe to observe their dialysis techniques.
In the middle of the two week trip I had a free weekend and went to the town in Germany where I thought my g.grandfather was from to get his birth records. In the process I met relatives who only spoke German. I barely managed to communicate with them with what I remembered from HS. It became a challenge for me to pick up the language again, so when I returned to this country I started taking a beginning German course in adult education in our school district.
In the German class with me were a couple. The wife was a travel agent and they were planning on taking a trip to Germany, so they wanted to be able to speak a little German when they were there.
About six months later I was traveling in Germany. I was walking down the street in Garmisch-Partenkirchen. I barely noticed a man and a woman sitting at an outdoor restaurant.; I did notice he was sitting in front of a half liter glass of Weisbier. As I walked past, I heard him say, in English, "I know you; you're from Denver." It was the guy from my class. They were on their trip.
That was in 1988. Since then, because of the way I travel, mostly avoiding large towns and overly touristy sights, except for one instance, I doubt that I have encountered a dozen Americans in my travels, let alone anyone I know. That one exception, a few years ago, I was in Prague. Because I am not as "at ease" traveling in the CR as I am in Germany, I used a RS guidebook and picked Guesthouse Lida to stay at. I think everyone in the room at breakfast had a Rick Steves guidebook on their table. (But I didn't already know anyone there.)
By the way, Guesthouse Lida is a great place. The two brothers who run it are charming hosts, and enthusiastic about their cit;y. I would recommend it.