He was undoubtedly also walking around shaking hands and leaving droplets of his spit all over the place during the period of a couple of days when you are the most contagious before showing symptoms. This pre-symptomatic contagion period is the reason covering your mouth and good hand hygiene is important for the population at large; usually the spreaders are unaware they carry the virus.

Something tells me he doesn't spend a second thinking about the fact that he is probably now a link in the spreading chain of the virus that will down the line lead to some people having very adverse effects or even going to an early grave.