In my 3 years of commercial business flying there was only one incident were a FA spilled a very hot cup of coffee into a gentlemens lap and he thought he was having a heart attack. We all chuckled about it later including the gentlemen and the FA but it's amazing the way fear spreads through the cabin when something happens. As for military flight horror stories, 18 years of Navy P3 Orion flying I've got some duzzies. But thats for another time.