We had a discussion about this on the Kumamoto-i mailing list after this article came out:
https://groups.yahoo.com/neo/groups/kumamoto-i/search/messages?query=microaggression
Yes, I can use chopsticks: the everyday 'microaggressions' that grind us down | The Japan Times
Have you ever noticed how many interpersonal interactions in Japan are like "speed dates" of set questions? For example, the taxi drivers who have the odd