"Intentionally" go out of bounds

[SC Ump]

I am trying to confirm my understanding of NFHS rules 9.6.1 and 9.6.2. In summary, 9.6.1 states A or K cannot go out of bounds and return unless blocked out. Then 9.6.2 states no player shall intentionally go out of bounds and return.

Here are some scenarios. Please let me what you think.

1. A22 is running down field as a receiver, dodges a blocker, and in the process of dodging a blocker, does not touch the blocker but steps out of bounds. Ruling: He is guilty of violating 9.6.1. (Even if he returned immediately.)

2. B25 is covering a wide out and, getting "turned around" when the ball is snapped, accidentally goes out of bounds, and keeps running downfield just out of bounds, in the restricted area, stride for stride with the receiver. Ruling: Since he did not intentionally go out of bounds, he is not violating 9.6.2. He has not requirement to return at the first opportunity.

3. B25 is covering a wide out. On the snap, the wide out steps two steps back, as if to receive a "quick out pass". B25 follows. The QB instead hands off to a running that goes toward that same side of the field. B25 see this, turns to his out side, runs straddling the side line for 20 yards, and is involved in the tackle. Ruling: (???) I guess my main question is in this or a similar play, how do you judge "intentional"?