Which of the following is NOT a common cause of fire?

Water leaks are generally not associated with causing fires. Instead, they are more likely to lead to other issues such as water damage or mold growth. Common causes of fire typically include activities and conditions that involve ignition sources or heat buildup. Smoking with matches can lead to an open flame, which poses a fire risk, while misuse of electricity, such as overloaded circuits or faulty wiring, can generate sparks or excessive heat. Defects in heating systems can also create fire hazards, especially if there are malfunctions or blockages that lead to overheating. In contrast, water leaks are usually remedial in nature and do not inherently possess a mechanism to ignite or sustain a fire.