No one likes having offended another person; hence everyone feels so much better if the other person doesn't show he's been offended. Nobody likes being confronted by a wounded spaniel.
Source: Culture and Value (1931; ed. by G. H. von Wright with Heikki Nyman, 1980), 1931 entry
-- Ludwig Wittgenstein, (Apr 26 1889-1951), Austrian-English philosopher; He was one of the most influential figures in British philosophy; produced two original and influential systems of philosophical thought.