Whiff
Many people have hidden disabilities you don't know if the sniffing has anything to do with a disability. I look able-bodied sitting down it's only when I move people see I am not. Some people with autism sniff and people with tourettes do as it's part of their ticks . Please don't judge people you don't know if there is something wrong and they can't control it .
Thank you Whiff. I am not infectious, I appreciate some people do not like sniffing, but, as you say, for some of us,it is something we can do nothing about.