Kids!

[rebbonk]

Little Freddie's mother was in the hospital after having given birth, and he was paying a visit to see his new brother.

He wandered into an adjoining room which was occupied by a woman with a broken leg.

"Hello," he said. "How long have you been here?"

"Oh, about a month."

"Let me see your baby," he then asked.

"Why, I haven't a baby," the woman replied.

Spoiler:

"Gosh, you're slow," said Freddie. "My mum's been here just two days and she's got one."