ABOK Page 18 74. One of the best but most misused of knots is the Reef or Square Knot (#1204). Employed as a Binding Knot, to reef and furl sails or to tie up parcels,it is invaluable. 75. But employed as a bend (to tie two rope ends together), the Reef Knot is probably responsible for more deaths and injuries than have been caused by the failure of all other knots combined. 76. In fact the ease with which it is capsized by jerking at one end is its chief recommendation as a Reef Knot. Tied in two ropes’ ends of different size, texture, or stiffness, it is almost bound to capsize and spill.