You CAN make a fight of it but it's not an ideal situation. Keep to limited objectives, like getting from A to B rather than trying to take on the whole army.
Either that or hide.
Obviously it's not good either way, but it's a lot better than the 'being dead' that a lot of people suffer from after sabre duels gone awry.
You can't lose by one point, yerss!
A two point loss leaves you injured but nothing long-term, like Obi-Wan in AOTC.
A three point loss is a severed limb or some other such permanent injury, like Anakin in AOTC.
A four point loss is crippling injuries like Vader presumably got.
A five point loss is the Darth Maul special- instant death.