No it’s not true that I’m actually worried about bumping into specific people who tried to friend me on Facebook. But as it’s true with most people who leave their hometown after college, whenever they come back it’s easy to see people you knew from high school working in the local supermarket. Last year I saw someone I remembered seeing in the halls working a register and another person I was vaguely acquainted with working the floor and fish section. It’s always a little weird, but not quite enough that I’d explicitly avoid going.