I tend to play tag with Fergus (and just about any other baddie in the game).
The char beeing attacked runs away past the other char.
So if the DK is under attack he runs past the hero.
Just after the hero he turns around and starts running the other way.
The hero attacks the baddie.
A miss or hit result (in text) results in the hero now being attacked.
The hero runs after the Dk and past him then turns just beyond the DK.
The Dk attack
Any hit or miss (as text) results in the DK being attacked.
Ok I think it's clear what I'm doing so I'll stop now
If you don't get any text the character under attack simply runs back to the other one.
Biggest problem with Fergus is that I begin to run out of stamina in the period after Fergus uses the heal so that I need to do a bit of punching bag (This due to the low level, higer levels stamina is no problem).
Don't forget when you do this the pauze option is your friend and you'd need to use it after just about any attack.