Well, there's no need for denial here. Time is relative in comics. This final day could last all week long or be done after a single day. If I was him I would try to find some way to slow down time or move to the other hemisphere where spring is just now beginning. But, that probably won't happen. So just what grade is sheldon in anyway? 4th? 5th? 6th? Child prodigy in high school?
on the internet, "fair use" means "anything I don't think I should have to pay for."