Here's a fun learning experience for me. I had always imagined that babies being carried by their mothers were safe. Somehow I assumed that the idiot children running around unattended on the hillsides were the only vulnerable ones; I guess that's because those are the only ones that were ever successfully stolen from me before. So today I found out how wrong I was.
It just happened that the dwarf who screamed out "Snatcher! Protect the children!" was carrying a baby herself. Worse, the kid already had a broken finger (yellow) and a mangled hand (red). I immediately drafted the mother and sounded the alarm for my military. I tapped a few dots to advance time a little, and just like that the child was gone. I checked the goblin's inventory, and the baby was already inside the goblin's silk bag. A few more dots, and the thief already had a two-space lead on the mother, then three. So don't ever assume that a dwarven baby is safe just because he's being supervised by his mother.
Interestingly, even when the baby is inside the snatcher's bag, you can see its feelings. For the sake of documentary completeness, and also because it's morbidly funny, here is what it says:
"Geshud Alathenkos has been unhappy lately. He was comforted by a wonderful creature in a cage recently. He was caught in a snow storm recently. He was disgusted by a miasma lately. He sustained minor injuries recently. He is depressed about being confined."
The mother, on the other hand, is feeling ecstatic; except that "she has complained about the draft lately." Get that? Only a few dots of time since poor little Geshud was snatched, and she's already found time to bitch about being expected to do something about it. Not one for a Mother of the Year nomination, I guess. And who did she complain to? It must have been the goblin. I'm sure he encouraged her to go file a grievance with the mayor.
Additionally, the baby's personality description ends with: "He needs alcohol to get through the working day and really wants a drink." Fetal alcohol syndrome FTW!
(Postscript: As I write this, one of my champions has arrived on the scene. Already he's in the process of nourishing the soil with goblin viscera. So it looks like little Geshud will get to go home with his unfeeling, negligent, alcoholic mother after all.)