Step One: Ask teenage daughter if she will watch her sister while you are at work the next day.
Step Two: Confirm with younger child that they want their sister to supervise them the following day.
Step Three: Have your spouse catch your teenager still awake and talking on the phone at 5:30 a.m.
Step Four: Decide with spouse that you will take younger child to daycare instead of leaving them home with sleep deprived teenager.
Step Five: Get ready for work, get younger child up (explain why, she can not sleep in today) and dropped off at daycare.
Step Six: Call teenager around 12:45 p.m. to see if the packages you had been expecting have been delivered and (while she is hauling the large heavy packages off the front porch) inquire about how her sister is doing.
Step Seven: Try not to laugh while teenager, having not seen said child will/might/could respond with “I don’t know, she is not up yet” to which you respond “Okay, well thanks for bringing my packages in, I will see you later this afternoon”, say farewell, and hang up.
Step Eight: Wait – Precisely one hour and four minutes
Step Nine: Answer your ringing cell phone to the cries of your panicked teenager who can not find the sibling they have been looking all over for during the past fifteen minutes and bask in the glory of what is either a lesson learned or a great prank on your smart aleck teenager…
Step Ten: …either way, prepare for retaliation.