Ah superstitious, I always thought I couldn't be it if I couldn't spell it. But, I've gotten that way now. It is a good question that I don't think anyone has a definite answer to. Mostly I just agree with people or tell them I am doing well.
I realy believe some people get very nervous talking about or being around cancer patients.

I noticed when I first started chemo, people in the waiting room had no reservations about asking what form of cancer someone had. I was very taken aback at first, then realized I think that people in waiting rooms form their own little support and information group. Everyone there was obviously there for cancer, not like a ENT waiting room. It is surprising the number of people that socialize with each other. I had never seen that in a regular doctor's waiting room.

Just my thoughts and an impression you guys reminded me of.
Dinah