I teach first grade. I think it would completely depend on the parent who was offering. If you already "click" with her and think you could have a good relationship/feel comfortable around her, then I would go for it! A good LC is worth a millon dollars and someone offering free LC services is awesome! I used my LC with Nate all the time. She was golden. I'd check and see what your hospital offers first though. My hospital offered free services to anyone in the community, regardless of which hospital you delivered at. If you already get free services, then I would use a stranger. If not, I'd use your classroom parent. I would assume she is a professional who would abide by medical laws and wouldn't discuss your personal business outside of your appointments. You might make a lifetime friend too. Having other mommy friends is never a bad thing and if you do have her children later in class, you will have already established a good relationship with her. I've had friends' kids in class before and other teachers' kids before, and it has never been an issue.