A "broken fishing line" case: Mosca v. Lichtenwalter (1997) 58 Cal. App. 4th 551 [68 Cal. Rptr. 2d 58], in which the court held that the primary assumption of risk doctrine permitted summary judgment against a plaintiff fisherman who was hit in the eye with a lead sinker attached to a line which had been stuck in a kelp bed, but which flew back when, allegedly, unsafely jerked by the defendant, another fisherman on the same boat. But in that case there was no allegation, or even a basis for an allegation, of a defective fishing line. As every fisherman (or ex-fisherman) can attest, fishing lines are supposed to break under the proper circumstances.