YES. This always happens to me in Asian restaurants. They smile as they ramble on, talking **** in their native language. Like, bitch, I can tell you're talking about me.
I speak very little Spanish, but a few of the customers at my work are Hispanic and will only speak English to briefly answer any questions somebody has. Anyway, a customer was talking **** about me in Spanish to her boyfriend at checkout (I picked up on a few words, and she made it obvious), so when I went to give her her change, I smiled and told her to have a nice day in Spanish. The color drained from her face almost immediately.
-D-B-