Clicking on walls/terrains issues

Occasionally, I would be clicking on a wall or terrain instead of path to run away from the enemies, which result me in going in the wrong direction, usually in the direction TOWARDS the enemies. Is there some calculation that somehow places the destination point to where I do not want it to be at? Also, wasn't there a option that disable calculating destination from clicking on walls after one patch in around 2014/2015? I checked for this option in the game, but I do not know what is the name for it.