He sent me a picture from a manual or rule book (don't know which) and bolded the word ACT and underlined it, that states:
Contact is not needed for interference. So if a runner; yells at a fielder as he runs behind him, waves his arms at the fielder, runs at the fielder and stops at the last second, stops in front of the fielder and jumps over the ball, etc. AND the umpire judges that this
ACT caused the fielder to miss the batted ball it is interference.
I think he believes that if you don't have any of this, you cant have interference.
I ask him to come on here and convince you guys that none of you know the rules of baseball but he hasn't taken me up on that yet.