I should hope not. That would prove an inconvenience.
[He feels of sound mind, at least? But then again, what basketcase doesn't...]
But since you ask, I suppose I might sooner attribute it to this world's antics rather than any other alternative.
[The "other alternative" being blaming Lucifer for it. Maybe it's not a good life decision to underestimate the literal Devil, but somehow, Sebastian can't find it in himself to assume that Lucifer would fake that confusion. His pretty little head doesn't have the smarts for it.]