They were instrument training and there was a hood from the instrument panel over the students head so that he could see nothing but the instruments.
They were descending onto finals and the instructor told the student to “look up” but the student remained under the hood. “Look up” he said again and with still no response the instructor slapped him as hard he could !
The aircraft did a touch and go and the next student (my father) had his turn and returned to the back of the aircraft. They’d now all done their instrument training and the Wellington was approaching to land.
He thought to himself; “that’s odd I haven’t heard the wheels come down...oh well, six pilots on this plane surely someone else would have noticed, must have been daydreaming.”
The Wellington crash landed without wheels and the rear of the cabin filled with dust which they all thought was smoke from a fire. During the mad scramble to escape my father received a size ten boot in the face.
Luckily that was his only injury of the war or I wouldn’t be telling this story.
The reason the fuselage filled with dust was because the skin of a Vickers Wellington was canvas over a geodetic frame designed by Barnes Wallis. The toughness of the frame design is what saved the crew from serious injury.