Make an object bounce when an object is walking on it

Hello Unity community,

I have a player/spider (red) which can make a path/thread and can also walk on it.

The capsule object which is connected (Rescale script see below) to two cubes should bounce a little bit when the player walks on it (like when a spider walks on a web).

The player can walk through the cubes. They're just there to help the user see where he can connect the next path. Is this even possible when the capsule is only one object?

The bouncing can be very simple. Nothing spectacular. However, without it it just feels wrong.

I hope someone can help me because I'm struggling with this.

 using UnityEngine;
 using System.Collections;
 
 public class Rescale : MonoBehaviour {
 
     public Transform start;
     public Transform end;
     public bool completed = false;
 
     public float factor = 0.5f;
 
     void Start() {
         SetPos(start.position, end.position);
     }
 
     void Update () {
         if (!completed) {
             SetPos (start.position, end.position);
         }
     }
 
     void SetPos(Vector3 start, Vector3 end) {
         var dir = end - start;
         var mid = (dir) / 2.0f + start;
         transform.position = mid;
         transform.rotation = Quaternion.FromToRotation(Vector3.up, dir);
         Vector3 scale = transform.localScale;
         scale.y = dir.magnitude * factor;
         transform.localScale = scale;
     }
 }

Player's Script:

 using UnityEngine;
 using System.Collections.Generic;
 
 public class PathFollower : MonoBehaviour
 {
 
     public List<GameObject> path;
     public float speed = 5.0f;
     public float reachDist = 1.0f;
     public Transform reachedPoint = null;
     public float rotateSpeed = 3.0f;
 
     public Vector3 height;
 
     //empty prefab to represent one of the two ends of a spider thread
     public GameObject target;
     public Transform nextPoint = null;
 
 
 
     // Use this for initialization
     void Start()
     {
 
         path = gameObject.GetComponent<PlayerController>().points;
 
         //calculate the nearest point. This point will be the starting point
         int j = 0;
         float tmp = float.PositiveInfinity;
         for (int i = 0; i < path.Count; i++)
         {
             float distance = Vector3.Distance(transform.position, path[i].transform.position);
             if (distance < tmp)
             {
                 tmp = distance;
                 j = i;
             }
         }
 
         Transform startingPoint = path[j].transform;
         reachedPoint = startingPoint;
         height = new Vector3(0, startingPoint.lossyScale.y, 0);
         transform.position = startingPoint.position + height;
 
 
         //add script ReachablePoints to get all points the spider can reach from this specific point
         for (int i = 0; i < path.Count; i++)
         {
             path[i].AddComponent<ReachablePoints>();
         }
     }
 
 
     // Update is called once per frame
     void Update()
     {
 
         RaycastHit hit;
         int layerMask = 1 << 8;
         Vector3 fwd = transform.TransformDirection(Vector3.forward);
         Physics.Raycast(transform.position - height, fwd, out hit, float.PositiveInfinity, layerMask);
         if (hit.transform != null)
         {
             Debug.Log(hit.transform.gameObject.name);
         }
         nextPoint = hit.transform;
 
         //rotates if left or right are pressed down
         if (Input.GetKey("a"))
         {
             transform.Rotate(Vector3.down * rotateSpeed);
         }
         if (Input.GetKey("d"))
         {
             transform.Rotate(Vector3.up * rotateSpeed);
         }
 
 
         if (nextPoint != null && reachedPoint.GetComponent<ReachablePoints>().reachablePoints.Contains(nextPoint))
         {
 
             //calculate distance to the next path
             float dist = Vector3.Distance(nextPoint.position + height, transform.position);
 
             //move to the current Target if up or down are pressed
             if (Input.GetKey("w"))
             {
                 transform.position = Vector3.MoveTowards(transform.position, nextPoint.position + height, Time.deltaTime * speed);
             }
 
             if (Input.GetKey("s"))
             {
                 transform.position = Vector3.MoveTowards(transform.position, nextPoint.position + height, Time.deltaTime * speed);
             }
 
             //stop moving if the target point was reached
             if (dist <= reachDist)
             {
                 reachedPoint = nextPoint.transform;
             }
         }
     }
 }