Life Lesson.

When unpacking groceries in the presence of a teenager, it is unwise to observe out loud that the pumpkin pie you just bought has an expiration date of that day.  It will be seen as a challenge.  On a related note, I was unaware that an entire 10 ounce can of whipped cream topping would be required to complete that challenge, although a small amount did go on top of the mug of hot chocolate.