It says much for the sensitivity and straightforward commonsense of Ross Brawn, the Mercedes F1 team principal, that he offered Michael Schumacher his profuse apologies for the latest technical glitch which sidelined the seven-times world champion from last weekend's Canadian GP.

As his team-mate Nico Rosberg headed for sixth place and another helping of championship points, Michael’s machine stood silently in the pit lane after an hydraulic failure left its DRS flap on the rear wing jammed open.

Schumacher was correspondingly gracious, saying that he thought the whole team would be understandably frustrated, but that they would be back, fighting fit and ready to go, at Valencia for the next race.

All that was left unaddressed was whether or not DRS was a good idea in the first place.