People with whom I have today shared a lift.

[Burney]

Obsession with narrow fields of interest? Check (London Underground).
Social awkwardness/inability to read emotions? Check.
Difficulty in interpreting whether others are being serious or not? Check.

My diagnosis is that Fash is on the spectrum. NTTAWT. (Sorry Fash - only joking).

Isn't the nature of the spectrum that we're all on it somewhere, though? I mean as a child I used to paint toy soldiers and liked going to first-class cricket matches with a scorebook that I'd fill in throughout the day. Thankfully, I still grew up unspasticated, but clearly the seeds of that sort of weirdness are in most men, I think.