WTP – I’m sorry – that part of my post wasn’t meant for you. There was nothing harsh about your answer. I appreciate your answering my questions. I never knew anything about this before, and I’m happy to know. It’s important to know these things. If/when I have my own kids, I suppose I will find out anyhow, but meanwhile, it’s good to know in case I’m watching someone else’s kids. And I probably would never have heard about this otherwise, so thank you!
Don’t take my ignorance as a generalization – the fact that I never heard of this doesn’t mean that most people haven’t. When my youngest siblings were kids, they weren’t saying these things yet, so I was never updated. But I’m sure most parents of babies know about these things.