I must say that I was happy to read that the Pits were well trained and went into the corner when they were told to.  Sadly, I think that this situation was Stevie's fault.  

  So many people think that they don't need to train their small dogs b/c they 'can't do any harm'.  In this situation if Stevie had listened and moved away from the Pits everything would have been fine.  Such a hard way for Stevie to learn...I'm glad that he will recover! 
BTW - I hope you don't think I am too harsh!