What is it about the grocery store?

So, I've lived in Berkeley for almost a year, and I can count the number of people I know on one hand. (Ok, this is not entirely true, it's probably more like 3 or 4 hands, but you catch my drift).

For some reason, I keep spotting random people at the grocery store. For example:

* This girl from high school who I hadn't seen in over 7 years
* The aforementioned girl's brother, who I also went to my high school (may I mention that I went to high school in georgia)
* Today I swear I saw my ex-boyfriend, yes, at the grocery store. Which is almost as strange as the time I ran into him in Amsterdam. But that's another story..