I understand the comment comes from a good, conscientious place, but from context it’s clearly talking about the shaken baby thing, which I think is misinformation that originated in a moral panic and has never really been demonstrated to be a thing.

And I agree that frustration absolutely isn’t an excuse but that’s really my point, I think you need to have something deeply wrong with you to shake a baby in the way that “shaken baby” actually means. Like as a new parent I remember seeing a demonstration by a nurse on this topic, and the way she shook that doll’s body was obviously intended to be shocking, but it’s not something you do just because you’re frustrated. It’s clearly violent. Like, I can confidently say I don’t think anybody in that room needed that demonstrated any more than they needed to be told, “Remember, don’t repeatedly punch your own baby in the face.” If you’re gonna do that then no amount of warning will change it I don’t think.