Collision between Character Controller and another object sends other object flying

This is a weird one. For some odd reason every time my Player Obj collides with the sides or at times the bottom of another object, the other object is sent flying or gets sucked into the player object.

What would be the causes of this? And is there anyway to fix this?

This is the collision script. The parenting on Player to Platform also does not seem to work properly.

 using UnityEngine;
 using System.Collections;
 
 public class AllCollisionScript : MonoBehaviour 
 {    
     public AllSpawnScript ss;
     
     void OnCollisionEnter(Collision other)
     {
     
         if (other.collider.tag == "Platform")
         {
             ss.tList.Remove(ss.PlatformOBJChild);
             GameObject.Destroy(gameObject);
             Debug.Log("Resetting Platform!");
         }
         if (other.collider.tag == "PlatformEnd")
         {
             ss.tList.Remove(ss.PlatformOBJChild);
             GameObject.Destroy(gameObject);
             //Debug.Log("Platform reached END");
         }
         if (other.collider.tag == "Player")
         {
             Debug.Log ("Is Parented");
             ss.PlatformOBJChild.parent = ss.PlayerOBJChild;
         }
         else
         {
             return;
         }
 
     }
 
 }