I met an old guy at Walmart, maskless, at the time I began to be awake and told him I agreed that masks aren't needed. He said he'd never worn one and if confronted, humbly said "I'm not supposed to wear one" and that no one had ever given him any trouble except some of the younger clerks at the feed store. I'm using this now and in the future and if pressed, I'll say, "I'm susceptible to bacterial pneumonia"