Well if they're going to be difficult and/or late about it, we'll just have to send them to Thursday instead. And of course, as it always does, the time travel shenanigans will soon become a clusterfuck of cosmic proportions. Before you know it, there'll be six of me, and one will be evil - you'll be able to tell because he'll have a goatee and dreams of world domination. And, as we know, one can't just be rid of their evil dopplegangers without some kind of dramatic confrontation and a bit of personal growth. Me, I'd just beam them all out into space. But then, perhaps I was the evil doppleganger all along, and I was just smart enough to invest in a razor. They'll never know.