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.
I met a metal detectorist near my allotments the other day. He showed me his collection of musket balls, coins and even the pins of several grenades that suggested the area had been used for Home Guard training during the war. I was fascinated and briefly toyed with the idea of taking the hobby up myself. However, I realised it's a weird old man thing and I've already got that covered by having an allotment.