In response to your post Samuel, I believe that no matter in which language you have done your mentoring experience, it is still a useful one to your professional development. I have done some mentoring myself with all types of students of different levels. I have mentored an Indian family whom moved to Canada for a better way of life, a business owner in need of vocabulary related to his domain, young children in need of an immersion type of education before moving to Alaska, etc. I believe this type of experience has a priceless value for what we will be doing later on: teaching people with different types of needs. I remember that when I was young, I had a French mentor working with me since I was all confused between English, Spanish, and French. This lady was the sweetest and most motivating person I have ever met. She completely changed the way I saw French (as an optional factor to my life) and made sure I was just like everyone around me, to avoid mockery or rejection. I believe she is my main motivation to become a teacher: I too would like to help others join the marvellous world of multilingualism.