Bah, this just happened to me. My character Henry Jones was exploring Egypt and of course came into contact with this family. I then started getting notices referring to Henry Kamel. I checked my profile page and, lo and behold, I had been renamed to Henry Kamel and had also gathered a daughter (child, not toddler).
Luckily Henry is a single sim, so this was largely rectified by a trip to the city hall as soon as I got back and changed his name back to Jones (after all, the plan is for him to spawn young Indiana at some point
).
Whilst still in Egypt I visited the child in question and after introducing myself (!), the first thing she did was complain about being hungry. So I'm now putting this down as Henry taking pity on a poor Egyptian family and 'adopting' the child.
As such, I can just about live with this, but I can see that this would be
really annoying to a sim further along its life plan or with an already-existing family.
Oh, and "hello forum"
Been lurking for a while, and this is a great resource.