Amelieisms

Amelie has always been very articulate for her age. (This is according to her speech pathologist grandma. She'll admit that she's biased, but at least it is a professional bias.) But she still says some of the cutest things. She is only four, after all. I was sad when she stopped saying "lellow." I even heard her correcting another child on that one the other day. She still says "aminals" and she says "freeget" for "forget," which I think is super cute. She also uses "what" for "that" which we've incorporated into our "I Spy" games.
"I spy, with my little eye, something what is green."
Adore it.
That brings me to the most recent Amelieism. Having reintroduced Mr. Nebulizer to our family over the last couple of days, Amelie's being asking about Linus' "breathment retreats." Initially she was getting frustrated that she couldn't say "breathing treatment," but now we've just adopted her way of saying it and she seems pleased with that. Too bad it's not much of a retreat for Linus or the person giving him "the breathment retreat." For some reason, I don't think screaming one's head off and wriggling all over the place is usually considered a retreat. Then again, maybe it is for some.
So, do you use the cute things your children say or do you always correct them and only use what's proper? We use the cute things our kids say all of them time. Are we causing them harm? Will their teachers hate us?