I was a corporate account manager for years and traveled extensively all over the world. I can’t tell you the number of times I ran into acquaintances all over the world. Several being friends in the military (I flew in and out of Germany a good bit) to walking into a customers conference room to see an old high school friend sitting across the table. I ran into other coworkers all the time in airports. Occasionally we would meet in the same city for different customers to have dinner and beers.
