NuclearSilo wrote:
login, ask a friend to knock back, knock down you so you get out of that terrain

He can't. He is inside the fortress and no one can go there ( i think? ). And even if someone could, he appears for so short time he can't even mark him to hit him. I've tried the same with my char when it was stucked, the result was that the guy who tried to help me got stuck too...