Bike polo. It's popular in many cities and now my neighbourhood is home to the first bike polo court in the world.
This is the name used by a woman I follow on Twitter. The Imp. It's what she calls her son online to protect his privacy.
The kid in this picture has a big cast on his arm, but this doesn't stop him from doing risky things. We met at Leeside Park, near Hastings and Cassiar, in an underpass and had seen him around at other parks.