A nasty little troll lived under a bridge with a signboard: Don’t feed the troll. But people kept feeding it. The troll grew bigger, uglier and meaner until one day he gobbled up the village in one big gulp.

“You grab a mad dog by the ears when you butt into a quarrel that’s none of your business” (Proverbs 26:17 – Online, trolls enjoy making people angry and starting arguments. Here’s good advice for online and in real life: “Don’t hang out with angry people; don’t keep company with hotheads. Bad temper is contagious – don’t get infected” (Proverbs 22:24 –