We sometimes hear things. I remember going into a hotel once and saying in English “Do you have any rooms available?” To which the receptionist replied “I'm sorry, I don't speak French.” I am certain that I spoke English, but the receptionist was expecting me to speak French.
On another point, I tabled a bill to require that Supreme Court justices be bilingual. A unilingual English-speaking judge appeared before the committee and said that he had had outstanding interpretation services. But how can he be sure of that if he does not speak French? Legal interpretation is very difficult.