Of course when he did leave, Travis learned most of all the songs that the band knew at that point and apparently played them even better than Scott did. So when they needed him, they chose Travis as a permanent replacement.
Rumour #2: He
was kicked out.
This
one isn't so nice as number 1. He was kicked out because he apparently
had a very bad drinking problem. And no matter what the band did to help
him, it didn't work. So they just decided to kick him out.
A rumour that goes with this story is that the song "Man Over Board" is about him and his drinking problem. Which if you listen to the lyrics, it does make pretty good sense with the story.