In two races, four penalties have been awarded against drivers who were on the inside of corners when an opponent made an ill-advised overtaking manoeuvre around the outside and, for his trouble, went off, alleging fault on the part of the driver who had been in front going into the corner.
So now it's clear: if you want to sabotage someone else's race, especially in the melée of the first lap, all you have to do is take a dive. Norris and Russell and, almost karma-like, Perez have all suffered penalties when someone else put themselves in harm's way and then complained about it.