Immoral want

[Godscreated]

Ever how long it takes to become a desire in your heart. A passing moment in anger probably would not qualify, to stew over it for a while until you "want" it to happen would qualify.

waht if you really really wanted someone to come to harm at once, you were as certain as certain can be that that person should come to harm. why does waiting a minute make any difference?

or

to come at it from a different angle, how long would you have to hold this conviction for it to be a sin?

What if you really wanted someone to come to harm held it for the minimum anount of time required for it to be a sin then changed your mind, what then?

The point is that this is all setting people up to fail and is an obvious tool of manipulation, it suggests that even our own thoughts are under surveilance by the tyranical overlord.

The LORD knows our thoughts before we think them, this is not surveillance, an all knowing God has this ability without sneaking around. Time has nothing to do with it, it's when the desire manifest itself in ones heart. You have confused a passing thought with a true desire, they are not the same.
There is no minimum time required when a thought becomes a desire it becomes a sin. Once a sin is committed the only way to get rid of it is ask for forgiveness from God, that is if you are a christian, and repent (which means not to take up that sin again). No one is being set up, that kind of thinking comes from guilt.