This is an unfriendly fire story;
Back in the 1980's I worked at Brooklands, and an old panel beater (the legendary Nobby Clarke ex of both Mo Gomms and Alan Mann Racing) said he was returning to work on his push bike during the war, there were aircraft flying around , and there was smoke coming from near his works (Vickers) but the place was a live airfield, He said it just did not occur to him it was a raid (even though the Battle of Britain was on at the time!).
He saw some people on the ground waving at him and heard a faint rattling noise...It transpired it was a "parting shot" burst from the rear of a ME110 and the people could see the bullets hitting the ground behind Nobby
He said he was more angry than scared at the time, but once he got home his mum had to put some extra suger in his tea as he got a shake on.
Different times, I think near 100 were killed that day on the ground as a suprise attack with no sirens initially.
ATB, Ed