Inaugration Musing

I would like to propose an amendment to the Constitution, to change the wording of Article II, Section 1, clause 8, which currently reads:

Clause 8: Before he enter on the Execution of his Office, he shall take the following Oath or Affirmation:--"I do solemnly swear (or affirm) that I will faithfully execute the Office of President of the United States, and will to the best of my Ability, preserve, protect and defend the Constitution of the United States."

I would like to add the following wording to this clause:

When taking this Oath or Affirmation for the second, or any subsequent, time, he shall add at the end the following phrase:--"And this time, I mean it."

(Note that I left it open-ended, just in case the 22nd Amendment is ever repealed.)