Why did Ozzy get fired from Black Sabbath?

Related questions

1. Which rock star famously bit the head off of a bat while performing on stage?
2. Is Sharon and Ozzy still married?
3. What does Ozzy Osbourne suffer from?
4. Why is Ozzy Osbourne famous?
5. Did Ozzy really eat a bat?
6. Are bats blind?
7. How did Sheryl Underwood's husband die?
8. Who Started Black Sabbath?
9. Are Sharon and Ozzy still together?
10. Did Ozzy get rabies?

Tags

1. #compared
2. #provided
3. #insistence
4. #point
5. #osbourne
6. #april
7. #between
8. #fired
9. #abuse
10. #iommi
11. #contention
12. #black
13. #substance
14. #other
15. #unreliable
16. #sabbath
17. #support
18. #issues
19. #members
20. #excessive
21. #reasons
22. #butler