[He has an excessive amount of thoughts on forensics. It's probably best not to get him started on them either, because he's as bad about it as some people are about the sports teams they hate -- you can't just look away]

I've already thought of all of that and no, so far nothing but the modus operandi. Believe me John, there's nothing you could say that I haven't thought of last night.

[It's almost a challenge though. Because maybe he's just a tiny bit fond of John's "odd", normal assumptions]