In battles, often military deception is used to bait the enemy into thinking that a certain move will be made, forcing them to act accordingly and attack from an unexpected angle. Intuitively, I would think that there is a fine line between being too obvious of a bait and being too subtle to be noticed.
Operation mincemeat from WW II is an example of a successful bait along with other examples in pretty much every war ever but I am having a hard time finding examples of failures. Particularly if there is ever a case of an attempted bait so subtle that it was entirely overlooked by the enemy hence not causing enemy to move in the anticipated manner
Edit: another similar but almost opposite example is Battle of Long Island, where Washington believes incoming British soldiers to be a ruse and doesn't react, but there is no ruse and he ends up letting the main force in