MemoryTale
Good with a stick
A pretty major one happened in one of my WIPs. I introduced an organisation intending it for simle world building. A few chapters later and it was pretty clear they were the villains of the piece.
Now what freaks me out a bit is when I've been using a name for months and months and then decide to check out it's meaning I discover that, say 75%+ of the time, there is a very strong connection between the name and what the character is doing in the WiP. This applies even to a made up name, a name from a foreign language that I have absolutely no knowledge of, or a word choosen for a name because the sound of it seemed right.
Before you all say it: yes I think I am applying a strong positive bias to this, so it's not really true.
But when it happens it's really spooky!
That's happened to me. I came up with Tashi as the name of a young man who comes from a Tibetan-style monastery, and when I googled it, not only did I find it is a genuine Tibetan name, but the first reference was to a monastery! I suppose it's possible I "knew" this subconsciously, having come across the name and not remembered, but I can't think where. I hope it wasn't the name of an important character in "Tintin in Tibet" or something.
I think you're alright with the Tintin!
I've done precisely what you describe above, HB, with a few of my characters too.
Of course it could be some sort of Jungian collective consciousness we're tapping into here, which might explain how we can make the connections with absolutely no foreknowledge.
Drifting into New Age territory now... I'll get my coat.