[tibear]

OK. I think I see where the problem lies. There are way too many situations to call interference and the call changes depending on the situation.

Why wouldn't the powers that be simply have one rule for interference? Wouldn't it make more sense to have one rule rather than one rule for the batter another for runners and yet another for batter/runner?

From everyone's standpoint(umpire, player, coach and fan) wouldn't it simply be easier if an umpire says interference happens and this is the procedure:
1 Time
2 Call interference
3 player who caused interference is out and possibly 2nd out if intentional

No wonder the average fan, and most baseball commentators, don't know the rules because they change depending on the situation.

Try keeping the rules as simple as possible and its easier on everyone. One of my favorite confusing rules for the average fan is the infield fly. It states that with less than two outs and runners on 1st and 2nd or 1st, 2nd and 3rd .... I would recommend that they remove the "or 1st, 2nd and 3rd" because it is immaterial. It adds information that simply confuses people, if there are runners at 1st and 2nd with less then two out you have an infield fly situation. Most people can't get by the runner situation never mind throwing in batter automatically out and runners running at their own peril, fair/fowl implecations, etc.