OJ, all along we have told you, you are the better person, but I think enough is enough now.
Her probabtion must be up now and her outrageous abuse on her last visit is surely the icing on the cake. You do not want for Steve to go back into the Hospice, so I think she now needs to be told the unreasonable behaviour ceases immediately or she's out. As long as it is made clear to her that is not what you wanted to do but she has left you with no choice and there are plenty of witnesses then DO IT.
She is upsetting everyone and her own Son in his last days, she does not give a flying feck bout Steve, how could she, she has no respect for you.
You want these days with Steve to be calm and peaceful, this is not acceptable. She should be trying to redeem herself in Steves eyes, well sorry but, the survey says................
YOU FAILED YOUR SON !
Ultimatley OJ you do what you think is best, but have no regrets or allow ANYBODY make you feel like she is.
BIG BIG VAGGY hugs. xxxxx