Because nobody should be over-dependent on
superglue or safety pins, everybody ought to know
a few knots; bends, hitches, bindings, loops,
mats, plaits, rings and slings, overhand or thumb.
Even Neolithic man could tie a clove hitch as many
a Kansan will knot the tail of a dairy cow for a snow plow
given a certain degree of ingenuity and a lick of common sense!