A comment on this discussion (which comes up a lot) but not the OP directly...

This is a great example of the "fundamental attribution error". I see someone contraflow riding in the dark, and assume that he is the "kind of person" who does that all the time (i.e., a nimrod). But when I do it myself, well, it's not because I'm that "kind of person," but because the situation called for such behavior (e.g., batteries died, no berm on right side of road). We do this stuff all the time to justify our actions and to more succinctly explain the behaviors of others.