Without testing it, I believe that you can not flee while knocked down.

Bug Name: Possible unintended behavior with dual wield
Reported By: Discovered on my mortal Sophia
Flags: Exploit
Summary: If you dual wield, then remove your main weapon, you can wear a shield. In combat you will perform one attack with your secondary weapon and the rest will be hand to hand attacks. I am not sure if anything is really gained by doing this but I thought I would share.

Documentation: See below. [attachment=0]dual_wield_bug.gif[/attachment]