whitroth writes: "The judge who just dismissed the lawsuit between Apple and Motorola writes a column explaining what he considers to be a resonable use of patents, and unreasonable ones. One of his thoughts would be to require a patent holder to produce the patented item within a certain time, to cut out patent trolls." Link to Original Source
I've never been canoeing before, but I imagine there must be just a few
simple heuristics you have to remember...
Yes, don't fall out, and don't hit rocks.