Still yet to unpack, but I know the doc with the op was not at all keen on the gliders, I seem to remember him saying that he wished he hadnt volunteered and parachuted in as the gliders scared him witless. I also believe he was injured on landing, knocked-out for some time, and the concussion caused him to wander towards the German positions several times. Bear in mind I have no books at hand so this from memory!

You may be interested in a little piece that I heard over the D-Day ceremonies...

A glider pilot, was getting ready for the off when a Padre came to get aboard. The pilot noticed the Padre was wearing his dog collar and a large revolver.
The pilot asked him why he was carrying a gun as he didnt think padres did.
The padre pointed to his dog collar and said, "this is for those that believe," he then pointed at the pistol and said, "this is for those that dont..."

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"Watch that Fu*ker, he'll 'ave someones eye out!" King Harold at Hastings 1066.