Nighty night...sucker!

Bedtime is at nine thirty. Usually, it happens like clockwork. Nine twenty eight and our tv show ends. He will jump into the laundry room, put his clothes in the washer and pj's go on. Brush his teeth and I'll tuck him in. BAM...it's 9:32!
Tonight, Sterling was feeling a wee bit cantankerous.
The tv show ended, Sterling stripped and came out of the laundry room naked. Tonight, he said nothing and averted eye contact as he walked past me. Into the bathroom he went, shut the door and turned on the shower.
He is always looking for ways to extend his bedtime. Normally, he would ask to take a shower at night...but I always say no. If he doesn't ask, I can't say no! His rationale is that he can sleep in later if he showers at night. If he waits until 930 to do so he cuts into any perceived sleep gain.
Sterling finished showering and went directly into his room. There he stayed for 10 minutes. Doing what, I have no idea. Ten to ten he came out and asked me to tuck him in. I had him pick up his crap he left around the house and we went into the bedroom for the tucking in. On his night stand was a glass of milk that had been there for 4-5 hours. He saw me looking at it, shrugged and took a drink. Then got up, emptied the milk, got a new glass and filled this one with water. All the while I was waiting in his room.
I tucked him in and after wishing each other a good night he asked me to wake him up at 6:15. HERE WAS HIS MISTAKE. I KNOW EXACTLY WHAT HAPPENED.
Our normal time to wake up is 6:45, yet he asked me to wake him up at 6:15. In his excited attempt to get rid of me before I could question why it took so long for him to get into bed, he did the math wrong. INSTEAD OF ADDING 30 MINUTES HE SUBTRACTED 30 MINUTES.
He wanted the "night shower" to count as extra sleeping time.
I cannot wait for him to realize this tomorrow around 6:30 ish.
Sucker! That's what you get!