"All about probability"... Exactly! This is a risk management game, and for each preventative or mitigation measure there's a point of vastly diminishing returns depending on the environment. So far the data suggests spread is not seen much with very brief or casual contact, and especially when outdoors. So I have ZERO problem with people not wearing a mask on an outdoor run... just keep one in your pocket in case you gotta jog past the police! 😉