I have a friend whos is older than me. 50 something-year-old Turkish fella. He did great for himself. Couple of restaurants, few off-licence, take away kebab shops.
All with no English at all. Yes, No, Garlic sauce, chilli sauce.. that's about it. oh and also he can say "Alright mate" with east London accent.
He managed all without speaking the language of the country he is living but lately he decided to be more sophisticated and follow some trends he sees in Turkish newspapers.
One of them was quit smoking using the hypnosis technic. He finds this ridiculously expensive expert and gets an appointment (how he managed that is beyond my imagination).He went to few sessions and no success.
So he complains and asks for his money back from the hypnosis doctor. When I saw him the  other day he said that the guy refused to treat him anymore and give his money back cause the expert can not put him in the hypnotic state to work on his sub conscious. It took 3 sessions for expert to realise that the guy can not speak or understand any English at all..

My friend explained the outcome of his experience in just one sentence (in a very Turkish way.)
"You cant stop smoking unless you speak English my friend"