Another thing that makes one a Vehicular Cyclist(TM) is you have to be blind to anything to the right of certain stripes on the road (but not others). The whole road must simply vanish to the right of certain kinds of stripes.
You have to become incapable of recognizing some roadway markings as being part of the roadway. And you have to be able to convice yourself that the same exact markings on the road are a valid part of the roadway if they aren't associated with bicycles.
You must also have such a severe fear of the rear that you feel a need to ensure evasive manuevers occur with every approaching vehicle before you will yield (of course you'll naturally have to yield anyway, but you like to think you are in control so you learn to fool yourself this way that you're in control and "safe".)
I think these are called deslusional beliefs, using the non-psychiatric definition. So basically, to be VC(TM) (with capital letters) you must have delusions.