When a story makes the news involving a pit bull,, the first thing that goes thru most peoples minds is how bad was the victim injured due to their aggressive reputation.

One pit bull named Lily is here to prove that not all in her breed are bad, and in fact can also prove to be a life save rather than a life taker.

Lily was critically injured after being struck by a train in Boston last week. She wasn't just running around when she was hit, she was frantically pulling her owner Christine Spain off the tracks after she passed out unconscious on them.

Fortunately Lily survived but the impact shattered her hind leg and liver, shattering her pelvis, and over the weekend, her front leg was amputated.

Her owner was uninjured.

Lily has been a lifeline for Christine, who battles depression and alcoholism, since she was adopted as a therapy dog several years ago.

Christine's son David Lanteigne says: "We rescued her; we saved her,and she made almost the ultimate sacrifice returning the favor. She's just an amazing dog." Source