Thats a very difficult one Pied, as you know sometimes people wait for a moment on their own so I wouldnt like to give you any advice really, what does your sister feel?
I knew my mum could hear me until the end even though she couldnt communicate at all. I went for a bath at one stage and left the bedroom door and bathroom door open .
I sang to myself in the bath to calm myself down and when I came out I suddenly remembered how much Mummy hated my singing!!
Just want you to know my love and support at this painful time Much love sis to you and your sis and lovely mum