I use the lack of a mask as a new way to torture fats. As for the masks, most businesses don't care but have a sign up saying to wear one just so they can remain open without the government hassling them.  However, there are still a few peckerheads that will come up to you and demand that you wear one, so it's best to be prepared.  When management of any store bothers me, I immediately reach into my pocket and pull out a jockstrap to wrap around my face for a mask.  (All the men in the family use women's panties.)  The insulted and indignant looks I get from that are hilarious.