My new response to people fake coughing when they see my mask

I live in the south and this happens quite frequently. You can tell who is being passive aggressive and who is actually sick/coughing. Either way it’s gross. I’ve been saying, “ewwww gross” or “ewww that’s disgusting” loudly when they do it but today something new came out of my mouth and I liked it better. Some guy did it not once, but 5 times. I said, “SIR are you okay? Are you choking?” He was dumbfounded and speechless. He walked off without saying a word. Thought I’d share in case anyone needs to file it away for their own experiences out in the world.