It is a folklore, a legend, or a mythical story from Ilocos Norte weherein a species of a mere caterpillar known as Dangan-Dangan or Measure-Measure in english was believed to be a silent murderer. It is said that this creature was a mere caterpillar and when it measures you from your foot upto to your head or vice versa, you'll be killed. This story was inspired by the legend stories from Ilocos Norte and will revolve around this creature. A friendly reminder, "Just don't get be measured."