Which of the following would NOT be considered a "friendly" fire?

A fire in a forest is not categorized as a "friendly" fire because it typically refers to wildfires that occur in natural landscapes, and such fires can pose significant dangers to both people and property, making them uncontrollable and destructive. "Friendly" fires generally refer to controlled fires that are managed and less likely to cause harm, such as those in designated areas or containers, like a wood-burning fireplace, barbecue pit, or incinerator, where they are expected and not associated with uncontrolled hazards. These controlled fires are intentionally started and maintained, which allows for safety measures to be in place, distinguishing them from the unpredictable nature of wildfires in forests.