I was not aware of this before, but a friend told me today that train guy Eric (who used to work for UPS) was actually dressed and acting much like a "trainspotter" from the UK. My friend was saying that over there, that is what the geeks wear. Right down to that type of jacket he had on and that Sheldon liked. The thought was maybe it was a nod to that similar culture as as our geeks in England. Or maybe just a coincidence. I know at least 3 Rail Fans- train geeks personally and could see a bit of Sheldon in all of them. As Rob H said, Yep. Been there, done that. Heck, still there and still doing it, but have learned to be quiet also.