I am getting pretty frustrated with having to interact with sick people. At work people come around behind my desk (and plexiglass shield). At the parts store the person helping was coughing a sniffling and kept standing close to me a talk right into my face. I ask people to stand back, I step away, and I wear a mask when out in public. I shouldn't have to tell people my life's story to get them to give me some space with demanding it.
How do you respond to rude, clingy, and possibly sick people in public?
I say something like "I still need to practice social distancing. Please respect my space." Most people are okay with that much explanation and those that aren't, I physically move away if possible. Best wishes to you.