Brave, but ‘without regard for danger’ rather than ‘in the face of danger’. A 'dogsbody' will appear brave, but in reality they simply have no concept of danger. This can happen either because they are more interested in excitement than the consequences of their quest for pleasure, or simply as a side effect of insanity. Derived from the Radio Call Sign of Douglas Bader (Dogsbody) a WWII pilot and hero who appeared indifferent to danger.
That lunatic on rocket powered skates is a real Dogsbody