You know you are when you see the 'Big Bang Theory' and know EXACTLY which train store he means by the 'uppity one' in the Pasadena area, and you know you're a railfan when you completely agree with his recommendation on the seating on the Los Angeles - SFO train - left side going up, right side coming back.....
You're killing me! At one time I even looked up 'train stores monrovia'...there really isn't one, just a hobby shop that may have trains.
Bernadette: What are you going to get at the train store, Sheldon?
Sheldon: Oh, I'm not buying anything. They're having a lecture. H-O gauge railroading. Half the size of O-gauge, but twice the fun. Very controversial topic.
Howard: Which side do you come down on?
Sheldon: I'll let you know after tonight. Unlike some people, I'm going in with an open mind. Who am I kidding? Of course we all know it's O-gauge or
no gauge. <---(I believe this was a typo and should have be '...n gauge')
Proving my point:
Sheldon: All these years, I've been so wrong. The tinier the train, the more concentrated the fun!