How did the Terry Funk vs. Sabu feud start?

[retardo]

I've always wondered what started the Terry Funk vs. Sabu feud which lead up to their infamous barbed wire match in ECW?

In addition, what was the cause behind these ECW feuds:

- Gangstas vs. Eliminators
- Raven & Stevie Richards vs. Pitbulls
- Tommy Dreamer vs. CW Anderson
- Rhino vs. Sandman
- Sabu vs. Sandman
- Stevie Richards vs. Luna Vachon
- Lance Storm vs. Rob Van Dam