Went for a walk/coffee/reading/book shopping this afternoon and I was stopped on St-Viateur street by, I believe, an hasidic jew who said “do you have a moment to come inside and turn off a light? I can’t do it, it’s saturday”. So I went in the apartment where all the lights were on (since the previous night I suppose), all the way to the fridge which he couldn’t open because it switches on the light and he can’t use electricity on saturdays, un-screwed the bulb so it would stay off, closed the door and was back out with thanks from him and his wife. Interesting that he can’t turn it off or on but can use it if it’s already on…