The safety of yourself and others is paramount. If you smell gas or suspect a gas leak, leave the premises immediately. Do not operate any electrical devices or create sparks that could potentially ignite the gas. If it is safe to do so, open windows and doors to allow fresh air to ventilate the area. This can help disperse any gas that may have accumulated. If you know the location of the gas shut-off valve and can do so safely, turn off the gas supply to the affected appliance. This will help prevent further gas leakage.