how to differentiate between fool's misconduct and wise's misconduct?
As per my penetration of the property of Sat-Dharma: fool is someone who thinks that he knows, while in reality not knowing, and acts accordingly. Wise knows what he knows and what he doesn't know - and acts accordingly:
King Milinda: Venerable Nagasena, for whom is the greater demerit, one who performs misconduct knowingly, or one who performs misconduct unknowingly?
Nagasena: What do you think, your majesty, who would get burned more, one who knowingly picks up a hot iron ball, ablaze and glowing, or one who not knowingly picks it up?
Also, Dhammapada 5.69:
So long as misconduct has yet to ripen, the fool mistakes it for honey. But [only] when that misconduct ripens, the fool comes to grief.
-- the implied contrast here is that the wise recognizes his own misconduct as misconduct before it ripens and "drops the iron ball" before it burns.
My commentary: the wise may not know, and can make mistakes - but he understands the limits of his knowledge and acts cautiously, in little steps, verifying his theory from received feedback and adjusting his model accordingly. The fool is assured of his (incorrect) knowledge and is attached to it. He does not actively look out for feedback and does not adjust his understanding and action. The fool is attached to his incorrect understanding.
This is how the fool is setup for suffering: because of his attachment to incorrect understanding which mismatches the reality and provides an incorrect basis for decision-making. The wise adjusts his model all the time to better match the reality, even as reality changes:
Imagine two Roombas (robotic vacuum cleaners), both with incorrect map of the house. One Roomba updates its internal map as it goes around and bumps into things. Another Roomba keeps going based on a wrong map. Which Roomba will clean the house better and which will likely get stuck?