I'm not sure I should admit this, but in the 80s my wife and I were marshals at Snettertonfor the 750 MC,and our post was Riches. Any way the green flag lap had just started, when all of a sudden red flags started to appear .Much embarrassment to both of us when we found out our two race mad sons,then7 and 11 had decided to run from the car,alongside the track to the bank where the marshals post was then situated!they were on the proper side(i.e.the spectators) of the fence, it was just that some "eagle-eyed" marshal at the post before ours thought they had invaded the circuit.Hence an abrupt end to a FFord race.That was the beginning of a chain of events that made us realise we were not intended to be motor racing marshals!
