Odd play toy

Ok, when we moved into the house, we had those doorstops that spring back and forth. Once Ascher learned to walk, he learned to take them off the wall and play with them on his finger. Well, we thought we would outsmart him and replace them with solid metal stops. Well, he got us back! He actually pulled this one off the metal post, leaving half of it still in the wall! I couldn't believe it, and Immer thought I was kidding! Hopefully this was just a defective stop....or our son is really strong.