The Gen. Cosgrove interview seems to be a version of the old joke as follows:
A couple go to a restaurant, have a meal and ask for the bill.
The husband objects to the item on the bill charging £5 for 'Use of Cruet'
"We didn't use the cruet" he objected.
"Well, said the waiter, "it was there if you wanted it"
The man paid the bill deducting £10. The waiter said:
"Sir, you are £10 short on your payment."
"I've deducted £10 for you having sex with my wife."
"I didn't have sex with your wife!!!"
"Well, she was there if you wanted it!!
Same joke you see, and not one of the greats either!! Sorry
John