A small boy finds a German WWII helmet in the bottom of a cupboard and quizes his granddad.
“Did you bring anything else back from the war, Granddad?”
“Yes, I’ve got a German trenchcoat.”
“Where is it, Granddad?”
“It’s in the loft, wrapped around the tank.”
The little lad’s eyes are as wide as saucers.
“You’ve got a tank too?!”