Chapter 1: Wear a harness 🔒

Phrase 1: When

Phrase 2: When working

Phrase 3: When working from heights, always wear a harness.

Chapter 2: Secure your ladder 🔒

Phrase 1: four to one

Phrase 2: ladder angle

Phrase 3: four to one ladder angle

Chapter 3: Guardrail 🔒

Phrase 1: guardrail

Phrase 2: is there a guardrail

Phrase 3: is there a guardrail on the roof?

Bonus Chapter: Leading Edge 🔒

Phrase 1: leading edge

Phrase 2: on the roof

Phrase 3: leading edge on the roof