Four in five ice users violent: study / The Age, 18 November 2007
http://digbig.com/4wabf
"Ice addicts are so violent and aggressive that emergency hospital staff need skilled security guards and personal alarms to keep themselves safe, a report warns. A survey of crystal methamphetamine addicts turning up to a Sydney hospital has confirmed they are significantly more agitated, self-destructive and bizarrely-behaved than other intoxicated people."
Comparison of crystalline methamphetamine (“ice”) users and other patients with toxicology-related problems presenting to a hospital emergency department
Medical Journal of Australia; 2007; 187 (10): 564-566
http://www.mja.com.au/public/issues/187_10_191107/bun10725_fm.html
Philippa J Bunting, Gordian W O Fulde and S Lesley Forster