The real safety issues:
Exposure to high concentrations of carbon tetrachloride (including
vapor) can affect the
central nervous system, degenerate the liver
[8] and kidneys
[9] and may result (after prolonged exposure) in
coma and even
death.
[10] Chronic exposure to carbon tetrachloride can cause
liver[11][12] and
kidney damage and could result in
cancer.
[13] More information can be found in
Material safety data sheets.