Rumor has it those claw impalers do stupid amounts of hate generation. I haven't formerly tested it yet because I'm lazy as shit, but from my informal testing they definitely snapped aggro quite well.
http://wiki.project1999.com/Scorpikis_Claw_Impaler
They proc at level 30.
Be our test case. The hero we need.
Otherwise get a staff of battle and group with people who can root and who are not dumb.