Found this little gem in Joseph LeDoux’s The Emotional Brain.
…in Western cultures, there is a grief hierarchy at funerals. As Mark Twain said, “the blood relation sobs; an intimate friend should choke up; a distant acquaintance should sigh; a stranger should merely fumble sympathetically with his handkerchief.” According to Ekman, if the secretary looks sadder than the wife, suspicions may be aroused…
pp. 117–118.
Not really relevant, but it’s something I’d never really thought about before, so I thought I’d share it.