Nowt is perfect, granted. But IMHO It's easy as anything to find clouds when people are looking for clouds - meanwhile I will always be trying to find some Sun, there is always some out there in all walks of news.
Or will people be left to touch the same door handles as everyone else. Doors would / could be wedged (surely wherever possible)
have to walk down corridors where 2m apart would mean walking in the wall. Or wait 3, 5 , 12 , 30 seconds until the corridor was clear.