What should be done during a gas emergency?

During a gas emergency, the priority is to ensure safety by minimizing the risk of ignition and exposure to hazardous gases. The appropriate action is to evacuate the area, call emergency services, and avoid operating electrical switches. This is crucial because any spark from switches or appliances can ignite gas present in the air. Evacuating allows everyone to move to safety, while alerting emergency services ensures that trained professionals can assess the situation and address the gas leak safely.

Ensuring the area is free of ignition sources and that individuals are at a safe distance from potential explosions or poisoning is the cornerstone of handling a gas emergency effectively. The other actions proposed are either unsafe or counterproductive in a gas emergency scenario.