Picture the scene. Lap 20, Hamilton, as usual, has a 15 second lead (almost enough time for a free pit stop), and a little more unexpectedly, Bottas is running a strong second, 10 seconds ahead of the third place car. Then, shock, horror, for the first time in five years, both Mercedes have to return to the pits with a mechanical issue on the same lap. For the rest of the field, the race is on again. The rare opportunity for a podium presented on a plate. But, hold on, what is happening? One by one they all return to the pits and wait patiently until Lewis and Valtteri have their proverbial pipes cleared and are ready to rejoin. The clock counts down and the race resumes as if a virtual safety car was being controlled and temporarily parked by the pit crew of the lead team.