As this viral video shows, one fortunate bike owner is riding off on their faithful two-wheeler, thanks to a speed burst from one woman at a San Francisco office complex.

Watch carefully, as the thief enters the frame around 25 seconds in, only to be thwarted in his attempted getaway. The brave, bike-saving samaritan is identified in the YouTube description as Kristen of communications firm WCG.

[HP]

The world needs more people like Kristen, don’t you think? Kicking ass over a bike that’s not even hers! A good Samaritan indeed.