in college, i was a theatre arts major. in one of my stagecraft classes i spent a whole month learning how to tie knots.
knots are huge in the theatre. what with all the rigging and ropes and everything. we learned that long ago, sailors were often stagehands. and sailors certainly know how to tie knots!!
i carried a length of rope with me wherever i went to practice my knots. i passed the knot tying test. but i couldn't tie a knot now if my life depended on it.