I guess the main thing I have a problem with was not just the wording harrifer, it was the insinuated scare tactics that using such terminology implies. I have a problem with those deal-a-ma-bobs. I find using scare tactics manipulative. I don't think as parents (are you a parent?) we need to frighten our children into behaving justly/rightly. I believe children see more from the example we set, rather than the words that come out of our mouths and very often fly somewhere over their heads (particularly at three). But then you know, the us is a country very often obsessed with using scare tactics to command right behavior. And I simply see this as mind control, as much as anything else. I grew up in a religious community where any supposed sin could seemingly get you into hell. The falicy of this way of thinking rang true when I realized at some point (and with some trouble) that I wouldn't be struck by lightening if I did certain things.
I think our tendency with young children is still to be overly harsh, rather than simply setting the expectation (in this case, we don't eat animals), and then leading by example. Good lord, as we all know, understanding DOES follow, and for some children all too soon.