bednobs....this story is second hand and goes back a long way and i haven't observed it in person....BUT..a mate of mine would, get his erect penis out e.g in the back of a car and the response from the woman was either advantageous to him OR shock horror by the woman.
If it was the latter, he would burst into tears and in the majority of cases, the woman concerned would put her arms around him and...well you can guess the rest.
Why does Otto's wife take the blame for Otto's mistake when he is a philanderer and won't worry about her why put herself through the misery of having it off with the inspector maybe she wants to protect her son from the scandal.