Listener and multiple quick presses on button

It is a good practice to remove the particular listener before adding it (in cases where your code is inside an OnEnable). This will prevent the listener triggering multiple times per single click

 homeMenuButton.onClick.RemoveListener (HomeMenuButton_OnClick);
 homeMenuButton.onClick.AddListener (HomeMenuButton_OnClick);

Also, for the fast clicks part set a boolean inside the method and perform method actions only if boolean is unset. Also remember to unset the boolean wherever required (Like re enabling your button UI)

 bool clicked = false;
 void HomeMenuButton_onClick
 {
      if(!clicked)
      {
           //actions
          clicked = true;
      }
 }