We moved here in January, my neighbour is a man and a boy about 5/6, I've never seen his mum so I assume they live alone. I haven't spoken to him very much.
I have heard the boy crying/shouting a few times in the mornings, when his dad was trying to get him ready for school, but other than that they're quiet.
However, the child has been crying in the garden for about an hour, not sure why, I can hear him saying no (and something else which I can't make out) and his dad is asking him to come inside (I didn't think he's crying because he's being asked to go in though).
It's been over an hour now, so would this worry you?