This was a sketch for a silly story a friend came up with featuring the aforementioned alien and the Walmington-on-Sea platoon of the Home Guard as portrayed in the BBC sitcom.
The Preds don't like it up em sir! They don't like it up em!
Genius... pure genius .
I would bet dollars to doughnuts those old soldiers would best the pred in some silly and buffoonish way. Nice sketch.