FFF wrote :
This controller said that it was one of the scarriest experiences he'd ever had. He was in a light aircraft, flying around at a few thousand feet, looking for traffic, and could maybe see two or three aircraft. Yet less than half an hour before, he'd been sat in front of his radar screen, and he knew there were dozens, if not hundreds, of aircraft that he couldn't see at all.
That's why I try to avoid flying at weekends, frightening
WF.