Alert guide dog buys couple enough time to escape

Watch as O'Neil, an 18 month old labrador retriever, warns his companions of impending doom. Quick thinking by O'Neil's trainer, Todd Jurek, spares him, O'Neil, and a blindfolded Danielle Alvarado from what looks like certain death. The Marin Independent Journal has the details:

"It was just an unbelievable sight to see something going backwards, barreling down the sidewalk," said Todd Jurek, a training supervisor for Guide Dogs for the Blind. He quickly herded the fellow employee and dog out of harm's way when he noticed the dog jerk its head to look behind them.