Montreux-Vevey area, Switzerland
I have been teaching English at lower and upper secondary level in state schools in Switzerland for about thirty years and taught French to foreigners in a private school (Eurocentres, Lausanne) for five years.
My mother tongue is French, and it is the only language I was brought up in.
I learnt German, Italian, and English at school.
And I don't mind polemic/polemical issues!