Shit test: Girl speaks in a different language, knowing you don't understand her.

Response: 1st. Joke around and pretend you understand. If she persists...

2nd. Stern expression, finger held up wagging slowly, held between her face and yours: "I don't like that."

I've had this happen a few times. There's a lot of latin women around here and once or twice i've had this shit test thrown at me. Generally I joke with them and show a light side of me but if they persist I just turn it around and straight up tell them I don't like it and they need to behave. It's worked for me extremely well, so well that i've had women focus and genuinely feel abashed for how they acted then quickly jump towards me, grope at my shoulder(As i've turned my side to her -- usually facing a bar) and drop the shit test/bitch shield completely.

Thoughts?