Ever wonder why your tippet can turn from a sleek aerodynamic length of fluorocarbon into a hopeless bird's nest in two shakes of a fly rod? LiveScience.com explains how easily this can happen to even the best caster:
"Surprisingly little disturbance or motion is even needed," Smith said. "It's quite easy for something to get knotted." Even the act of picking up the phone and placing it back down could be enough jostling to trigger knot formation.