Comment by gattr

I heard an anecdote from a ninjutsu instructor (a European). He was visiting Japan, meeting with friends; and to one of the meetings he wore a T-shirt with the Nin kanji. Suddenly one of his hitherto very friendly acquaintances changed to being only coldly polite. Later it turned out he was from an old samurai family, which was mostly wiped out by assassins some 400 years ago.