A traffic police officer in China working on a late-night patrol stopped a student riding alone after he noticed she had no helmet on. Speaking to her, he discovered she wasn't wearing hers because its buckle was broken. To her surprise, the officer reached into his scooter's helmet box and pulled out a spare helmet for her to wear instead. Before driving off, the officer reminded the young rider to stay in the non-motor vehicle lane and watch out for fog in the coming days. His gentle, chatty tone has touched many viewers online.