A while back, we got a Facebook comment suggesting “politely” that we didn’t know anything about tying knots. The reason? We didn’t mention that you should wet the line when pulling a knot tight. The reason for that flaw was that we were shooting a video for the Facebook page and, unfortunately, we had to cut time somewhere, and that came when we opted not to wet the line (and we were working indoors anyway, so I didn’t have a pond handy). Although we agree with the commenter’s general advice, the incident brings up a whole new lesson: Everybody seems...