A British community leader's video explaining what young people should do in the event of someone pulling a knife has gone viral.<br /><br />In the clip, which was filmed on Monday, Londoner Garvin Snell, 37, demonstrates with his son his technique for dealing with a knife attacker.<br /><br />Snell picks up a knife and his son immediately sprints away and jumps over a garden fence. <br /><br />"There's no shame in running away," says Snell.<br /><br />"If someone pulls a knife on you, get the hell out of there," he adds.<br /><br />"I really hope this video can save lives because too many young people are being killed for no reason," Snell wrote online.
