Straight into it: I have an acquaintance/friend who separated from his wife about a year and a half ago. I have no idea what caused the split as I wasn't around then. We've known eachother for just under a year and see eachother as part of a group of friends once or twice a week. No romance involved BTW!
He has 3 children from his marriage, including a 10mo baby. He shares childcare with his wife, who works, and last week he was stuck for childcare so I babysat his 3 children at his house, which I'd never been to before. He's fairly well off so it's a lovely house in a nice area but I was so shocked by the state of it inside. It was absolutely filthy and an utter tip - carrier bags all over the floor, curtains hanging off the rails, dust and grime and crumbs and all sorts of rubbish ground into the carpets. The kitchen was awful, the bathroom indescribably so. You couldn't even get into the dining room because the floor was so covered in clothes. I have no idea if they were clean or not.
Now, how he chooses to live is up to him and if he were living there by himself I wouldn't be too concerned, but his children spend every other week there too. The thing that really worries me is that his baby is at the stage of putting everything in his mouth, and even with me keeping a close eye on him that afternoon I had to remove four objects from his mouth, including a battery, a screw and a coin. There is so much stuff lying around that it just isn't safe.
I am worried 1) that my friend isn't coping and 2) that that baby is in immediate danger. I cleaned up as much as a could while I was there but the whole house needs a deep-clean. I'd be happy to help out doing that but if he is depressed or having a breakdown that isn't going to help much. If he's fine and that's his normal standard of cleaning then what?
How can I tell him that his house is a tip and putting his child in danger? I don't know him all that well. I'm not sitting in judgement, I just want to help, but how do I go about it in the least offensive manner possible?