Jeffrey Tambor on Being New Dad at 66, Using Ladies' Bathroom (VIDEO)

When Jeffrey Tambor is out with his two 10-month-old twin boys, people assume they are his grandchildren, he said on 'The Late Late Show' (weeknights, 12:37AM ET on CBS).

Craig Ferguson can relate: He's 48, and his wife is pregnant. "People like to say, 'You're 48 years old, and you're going to have another child?"

That topic was followed by Tambor telling the story of getting into big trouble at his local public library. He "really, really had to go" to the bathroom, explained Tambor. "Well, you're 66!" interjected the host.

Anyway, he was barred from the men's room. And what transpired had Ferguson doubled over in laughter.