I must admit that I was slightly suspicious of the "my MIL would run out of the room." I believe that satsum was exaggerating and possibly meant rushed out of the room. I could be wrong but being a fairly agile grandmother who only recently jumped on the trampoline with my grandson, plus able to stride up hills without missing a beat, I would find it quite difficult to run out of rooms, while holding a baby. My daughter has also had the experience of two women (one in her twenties) at different times not giving back her baby when he was crying as they thought they could settle him, one telling her to relax. It is far from relaxing hearing your baby crying for you. Parents do need to speak up for their babies, as some grandparents have had to do for their grandchildren and some have also written about their concerns for their grandchildren.
I also agree satsum was right to ask advice but must expect some will see the problem differently and not just agree.
I also would say gillybob don't stay away. I read a thread the other day and there was not one newish poster. I have also noticed less posts per day, maybe I am wrong here, but in the last day there were 38 discussions, there used to be anything up to sixty and over.