Every flying organisation has these characters whether it is general aviation, military, airlines or corporate. That includes simulator instructors. Smile sweetly and suck it up and you will be fine. Easier said than done you might reply. You cannot reason with them for they have temporary power over you. The dangerous ones are those that come across friendly on the ground then without warning change their personality once they occupy the instructor or check pilot seat. You might win the occasional battle of wits with these types but just remember they can be career busters and you eventually lose the war.
It has been forever thus in aviation. If things become intolerable try to change instructors.