My first experience though was less than auspicious. I was staying at a friend's cottage north of Montreal. They were observant (to a point) Jews and so we had a bit of a buffet supper on Saturday. I politely asked what the horseradish was, was told by the father to try some. "No, no, take a big spoonful, that's it!" My friend stopped me before I could do myself damage.
But I love the stuff.