Well, it looks as though two of the principles in the Renault team deliberately engineered a crash in the Singapore Grand Prix allowing their other driver to win the race.
Considering they changed the stop strategy of Alonso to provide maximum impact when Piquet Jr deliberately drove his car into the wall in an area that could not be quickly cleared, which ensured the safety car had to come out.
Why is this such a gross act of cheating? Because it could have cost not only Nelson Piquet Jr. his life, but those of other drivers and spectators as well.
It will be interesting to see what punishment is applied in this situation by the F1 authorities.