Don’t assume that the “other fellow” knows how to sail and is familiar “with the rules of the road.” He may be more ignorant than yourself.
Don’t wait too long before turning aside for another boat. Shift your helm to show your intentions.
Don’t try to sail too close to the wind. You’ll reach your destination more quickly by sailing a few points off and thus traveling faster.
Don’t run dead before the wind if it can be avoided, especially in a seaway.
Don’t sit on the lee side when sailing on the wind.
Don’t climb up on the masts or into the rigging unless it is necessary. A man’s weight at the top of a mast may cause the boat to capsize.
Don’t lash or tie the helm under any circumstances.
Don’t leave a lowered sail unfurled. It ruins the sail and is dangerous.
Don’t try to run to a mooring or a landing before the wind when under sail. Lower the sail and run in under bare poles or row in.
Don’t fail to take the advice and suggestions of more experienced boatmen.