Brett: "Walk Away is about, this is one of my favorite ones, it's about having the guts to walk away from a bad situation when it's necessary. The character in the song doesn't, he ends up going back to his dreary life and ruminating that ... someday he's just gonna pack up and walk away but he never does. Recognition of the fact that life is short, … you owe it to yourself to choose a path that coincides with what your dreams are."[1]
If you take the main theme from Bedrich Smetana's "Die Moldau" and play it faster and with a couple of smallish changes, you get the solo from Walk Away.
In Ocean City, MD (a resort town on the east coast that is really big on both surfing and skateboarding) in September-October 2000, they had a show on TCI Public Access for the Ocean City area called What's Up TV which potrayed local skate and surf footage as well as punk music videos. Walk Away was always aired on their title intro on each show as well as being played on the commercials for it that were aired.
^ Roger Vulture interview with Brett (1996)