Injury to sails:

Sails are most often torn or split through carelessness in tieing in the points when reefing, or not untieing when shaking out. The first man will tie his points hard, the second slack, consequently bringing undue strain on one cloth. All the points should be tied with as nearly equal strain as possible. Another cause is allowing sails to fall and lie over pointed things, like oarlocks, anchor stocks and belaying pins. Somebody steps or hauls on the sail and the point goes through.