I've lived in Los Angeles for five years. I've also been writing for mental_floss for five years. Somehow it took five years to spot my first _flosser on the streets! I was parking my car on Beverly Blvd when I saw this nice, young gal walking toward me in one of our best-selling tees. Her name is Jennifer and she has this to say:

Great to meet you yesterday. I bragged about my near-Hollywood encounter all day!
I tell my dentist I floss daily thanks to you (I'm sure that cheesy joke doesn't get old)

The moral? It pays to wear our shirts out in the real world! If we spot you, we might just grant you 15 minutes of online fame. ;-)