This is my favorite story about Spa.

"During the 1973 Spa 24 Hours three drivers were killed. Jochen Mass tells a horrifying story of sharing a car with Hans Stuck and during one of the pitstops at the night, Stuck shouted to him over the noise that he should "look out for body parts at the Masta Kink". Mass arrived there expecting to see bits of car all over the road but was appalled to discover it was bits of a marshal."