Our weiner dog mix fell out of a milk crate on the back of my bike, also out of a car once. I'd like to give him credit for jumping but he was really just trying to see further. Other than that incident, it worked ok. I haven't ridden with him in a long time... I guess not since having kids.
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Genesis 49:16-17
"Well, well!" said Holmes, impatiently. "A good cyclist does not need a high road. The moor is intersected with paths and the moon is at the full."