article_snippet.sent: It's not intended to be a safety video.
article_snippet.sent: But this stomach-churning clip of a longboarder crashing downhill at high speed certainly serves as a warning to wear a helmet.
article_snippet.sent: Going, going: this stomach-churning clip of a longboarder crashing downhill at high speed certainly serves as a warning to wear a helmet .
article_snippet.sent: Warning for next time: