Newt, I think we've all been there. We all ride bikes and therefore would consider ourselves to be more 'bike-aware' than most but I bet we've all, at some point, 'not seen' a bike. Like all things in life, learn from it but don't worry about it.
neill
PS I still believe that the driving test for cars should include time on a motorbike/scooter to show people the capabilities and limitations of a 2 wheeler and also, demonstrate how vulnerable they really are. (I'd also extend it to include a pedalbike and a 7.5 ton truck, but that's another story)
