1/2
[Well, when you put it like that, anything would sound reckless and overconfident.
...But, okay, Sebastian can put two and two together and get that he was stabbed for his efforts. With a death scythe. Through his chest, if Ciel's clothes-pulling earlier is any indication. There's no point in asking how come he isn't injured - Ciel clearly doesn't know the answer to that either - so Sebastian doesn't. Hmm.]
Not even someone like me would have walked out of that completely unscathed. [Is that the reason for his memory lapse? Sebastian is hardly an expert on death scythes and what kind of damage they do to a demon... After a moment he shakes his head, though. After all:]
As long as you remain unharmed, all else is irrelevant.