My wife loves using the word "that" in a declarative sentence; her favorites: "I knew that," "You're not going out looking like that," and "I can't believe you did that," which is always accompanied by "the look." Her saying "I can't believe you did that" can often be confusing, as there have been times when I wasn't quite sure what she was referring to and what I should apologize for. I certainly didn't want to apologize for a "that" she was unaware of.
Our quintessential "I can't believe you did that" moment took place on Friday, Dec. 6, 1985, at New York Hospital Cornell Med Center, the day before my daughters were born. That day, there was absolutely no doubt as to what she was referring to.