It's not that difficult to understand, and is very precise, (sorry to repeat) but it's like hitting your mother, it's something you never, ever do, nor want anyone to ever think you might have done. 100% of the responsibility for this is on the shoulders of the player.
When there is accidental, or irrelevant, contact, the first thing a player should be doing is to assure the official whatever contact may have happened was accidental. When you accidentally bump into your mother, the smart son immediately says something like, "oops, sorry Mom", which removes all doubt and misunderstanding and allows both son and mother to forget about it and move on.
So it is with contacting an official, the player has the option of totally removing any notion that that the contact was deliberate or malicious, or leaving it up to the judgment of the official. When you leave a judgment entirely up to someone else, you have no leg to stand on when you don't like the judgment that was made.
The player has total control over what impression he chooses to leave with that official, and ZERO control over what consequences may come with the impression he chose to leave. There's a lot less unnecessary risk in the player quickly establishing that the contact was accidental and unintentional.
