'proportional' Dividers

my german silver proportional dividers are over 20 years old, dating
back to my mechanical designer days. the first and best piece of
advice anyone who might buy this equipment can receive is: never,
ever, ever let the instruction booklet get more than a foot from the
divider case. never, people, that means not even once. you could
find yourself setting aside a day to work out the settings, ratios,
proportions for a new set of instructions. the second piece of
advice is the adult equivalent of “don’t run with scissors in your
hands”: never, never set them on top of a slippery missile
combustion chamber mockup you are carrying across a room; the points
will go through carpet, into the concrete & stick up a scant inch
from your toes -

ive
’life is short, pick interesting companions’