The driver of a big rig was getting ready to pull out of the driveway of a business the other day and we were still about 50 yards away, but he waited, and then waved for us to go ahead, so that he wouldn't block us on the bike lane as he slowly moved out. Very considerate of him, we thanked him.
Then not too long after, another big rig winged by us at about 45 just outside of town, his right wheel about an inch to the left of the inner bike lane line, and I probably could have touched the truck if I reached sideways, even though he had plenty of room on a very wide lane and plenty of time to see us. So, in the space of a few minutes, we encountered one driver who cared, another who did not.
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What do you call a cyclist who sells potpourri on the road? A pedaling petal-peddler.