What's wrong with my script? OVRPlayerController has no effect on rigidbody

Hi so i'm just getting back to unity. I'm using Unity 5 because Unity 2017 just didn't work.  Im developing for the Oculus Rift.

Here's the simple little thing i want to do. When the player walks up to a rigidbody the rigidbody should disappeaer. (later i'll make it move)

Yes i set the OVRPLayercontroller in the hirarchy to be tagged Player. And yes i added the script to the rigidbodies i want to be affected. Not sure why it's not working. All examples in the web do the same kind of thing.

SCRIPT:

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class RigidbodyPushMe : MonoBehaviour { 
  void OnCollisionEnter( Collision col ){
         if ( col.gameObject.CompareTag ( "Player") )
             Destroy (gameObject);
         }
   }

}