If I couldn't equip good weapons or armour and there was cover (either my 'friends' or caves / rocks) to allow a fair chance of escape, I would try that. If there were no allies or other cover, I would attack with whatever I could manage.
In the game, that is. In RL I would drop to the ground, curl up in a fetal position and cry like a baby. <img src="/ubbthreads/images/graemlins/biggrin.gif" alt="" />