BBC - Travel - The complex art of apology in Japan

www.bbc.com/.../20180805-the-complex-art-of-apology-in-japan

According to Laurie Inokuma, who holds a degree from Cornell "in Japanese language" and worked for Japan Airlines for 15 years, however, this isn't true. 'Sumimasen', for instance, isn't necessarily replacing 'arigatou'

あのキチガイがまた薬を飲み忘れたな。