Im in the same boat as Bike colorado, I can't think of not having a good ride.

Well.... Except that last fall when I broke my wrist, I was a little annoied that it cut my ride short.

And also riding the 6 or 7km home with a broken wrist seemed a little longer. It was into the wind, or so it seemed.
Come to think of it, it was all uphill too....

Ok I did have a bad ride, but Ive got a good story to tell about it, so Its not soo bad... LOL