I found the matching paragraph in my 1918 Maude translation: "At that moment there had happened to him what happens to most people when unexpectedly caught in

I found the matching paragraph in my 1918 Maude translation: "At that moment there had happened to him what happens to most people when unexpectedly caught in some shameful act: he had not had time to assume an expression suitable to the position in which he stood toward his wife now that his guilt was discovered."