It was possible to carry a joke too far in public.

He knew Helen would say: "Don't be silly, Ronnie!" He particularly disliked milk, and was not fond of sponge-cakes; but he hastily drank the one and ate the other.

He could think of no other way of disposing of them.

He hoped the young women who were watching him from behind the counter, would think he enjoyed them.
Then he called for a whisky and soda, to take out the exceedingly beastly taste of the milk; but instantly remembered that old Dick had said: "Touch no alcohol," so changed the order to another cup of coffee.
This second instalment of coffee made him feel extraordinarily fit and vigorous.
He put the Infant back into its bag.
The inspector returned.
"We have found your luggage, Mr.West," he said.

"If we may have your keys we can get it out for you." "Ah, do!" said Ronnie.