Hearing “he ran like lightning” does not automatically establish ghuluw: one must first decide whether this is a simile or a direct assertion about what happened. Then consider intensity, rational possibility, and customary plausibility separately.
Mistake 1: Treating every hyperbole as a simple false news report.
Mistake 2: Classifying every unusual event as logically impossible.
Better method: Analyze contextual clues, figurative form, and the asserted degree of possibility together.