There are plenty of products on the market which promise to stop crooks from stealing your bike… but we don't think many can compete with Li Li.
The golden retriever has become something of a minor celebrity in China after standing guard when his owner goes to run errands -- and then jumping on the back when it's time to go.
More than 100,000 people have viewed a video of the dog (known locally as Bike Hugging Dog) sitting upright on his hind legs and holding the bike. That's better than any bike lock we've ever seen.