Ghastly business all round (though I'm not sorry I waded in, can't see what else I should have done.)
I was out shopping, heard yells, saw a couple having a fight over a toddler in a pushchair, so dived over to see what was going on. He was trying to take the toddler away, the mother was screaming at him to leave them alone, two or three bystanders were yelling that the police were on their way. I asked him to calm down and let go of the buggy. He told me what to do with myself (unsurprisingly) but I stayed put and told him he was scaring the kid, and that people weren't going to look away while a grown man shouted at a woman and child. The couple carried on yelling - I said to her I would stay till the police arrived. In the course of the row (he did calm down a bit) he was telling her he loved her and wanted her to get help - in between calling her names - and she was pleading with him not to take the kid.
I got the impression she might have a drink/drug problem - mainly because he didn't come across as clever enough to be making all that up just to discredit her.
The police came along in the end and spoke to them both and I cleared off. I'm mostly sorry for the kid. What a fucking mess. Feel a bit wobbly.