As fans of his show can attest, Seán Moncrieff comes across as a pretty chill guy. Whether covering offbeat curios such as stick-appreciation websites or dealing with contentious topics such as anti-Semitism, the host approaches his brief in a spirit of affably phlegmatic inquiry. But occasionally the on-air persona cracks. During Tuesday’s discussion on Moncrieff (Newstalk, weekdays), with the reporter Henry McKean, about the phenomenon of “micropettiness” – defined as small acts of revenge, in case you’re wondering – Moncrieff is typically sparky. That is, until he reads out a listener’s text complaining about crockery being left unwashed. “If you...