It's something to swallow, that's for sure. But Yoite doesn't question the fact that he has a soul at all, which is interesting in a way. Even though the boy (the thing) saw himself as such a terrible blight upon his timeline, and must have considered himself gruesome (allowing himself to decay, signs of neglect, and the way he covered himself up with fear, not modesty), he still thought he had a soul. Or did he only think so because Crowley said he'd be taking it?

A brow arched at the counter-offer. The demon wasn't surprised, just amused. But it's the question he addresses first.

"Shoving you out of the airlock would benefit you more than me," He points out, "You're more useful to me alive than dead. Believe me - your soul's not really quality condition. But if you do die before time is up, well, you've not fulfilled your end, have you? Your soul comes to me. So try to avoid that, hm? Of course it's dangerous, moron! Picking daisies and baking cookies is hardly a fair trade for altering the bloody universe. You've got to earn this."

And Crowley couldn't technically kill the other while he had the contract on anyway. He could have Yoite set up to be killed (as that recent little snot in his employ had tried to - Crowley sort of missed him; he was a wonderful volunteer for showing what happened to fucking idiots who couldn't be damned to find a loophole in the contract itself), but that wasn't much his style. That wasn't the gamble he was going to make.

"You don't think you're the only one I'll ever make a deal with here, do you? If I were to kill you before your contract ended, that'd be rather bad for business."

One year. Hm.

"I can do three years at the very least. I know you're rearing to go, darling, but let's not be so selfish. I'm not running a charity."