Mischief is generally what I'm known for, yes- when it's not chaos and mayhem. But I try to avoid the mayhem, now.

[Formerly evil, he swears. Not that Billy would probably believe him on that just yet, and he sighs.]

What would you believe? I could tell you you're very grouchy in the mornings, if that would help. That you don't always sleep well?

[He shrugs.]

Or would you prefer the things I could only have learnt from you telling me? Your father used to tell you all the Norse myths, didn't he?