Interference - Is intent Required?

[JefferMC]

Originally Posted by BretMan

Personally, my own sense of the "spirit and intent" of the rules would call the runner out for interference and the batter-runner out because the interference prevented a catch..

Are you saying then that on a ground ball where a runner runs into a fielder while fielding the ball you're going to call that runner out for interference AND the BR out because the interference prevented a throw to first? Or would you do this only if you thought they would have gotten both the runner and the BR without the interference?

IMHO, the out for interference for causing the missed catch replaces the out for the catch. That player leaves and the BR goes to 1B.