Like idiots the champions run at the invisible force field, rebounding off it like lemons off a SAR shield(*). After a few tries, they are forced to try something intelligent.
(*) While studying and experimenting at wizard school, Elija once noted the near perfect elasticity qualities of a lemon flying through a SAR field, towards his fifth glass of Tequila.
(**) You never knew this, but when forcing the champions up against a wall they make this 'Ooof' noise as they get the air forced out of their bodies from being crushed against rock and stone, in armour. However rebounding against forcefields they donīt make any noise, yet our Champions have been known to lose teeth as the back row bang against the back of the heads of the front row. No 'damage' is incurred yet the sight in the street of two missing front teeth is a sure sign that once the guy was present in the back row of a demented dungeon quest.(***)
(***) ... Except for halflings. They bounce off the soft and cumly buttocks of the front row, but this causes other problems, such as hurled stones bouncing off the back of heads - Sorry!