Harald Krueger, chief executive officer of Bayerische Motoren Werke AG (BMW), center, is assisted after collapsing during a BMW press conference at the IAA Frankfurt Motor Show in Frankfurt, Germany, on Tuesday, Sept. 15, 2015.

Of the few things we know about boss's Harald Krüger's collapse at the Frankfurt motor show, one seems to be clear. Before he took to the stage, he felt ill and someone — probably Mr Krüger himself — decided to go ahead with the presentation anyway.

Was it the right decision? It was certainly understandable. He is a new chief executive who was due to speak at his home motor show. Cancelling would have looked bad. It would certainly have fuelled gossip.