DO Note that YOU take all risks for this.
Alrightio. Basically there is a spot in Icecrown near Chillmaw (Threat From Above guy), where you pull him and he won't ATTACK You, however he won't evade your attack/spells too.
This was found by me, while trying to solo him normal way, and when I was running away I noticed this.
Please notice, that there's still 3x Adds you gotta deal with.
Here's the safespot tracked on minimap :
VIDEO : YouTube - Solo Chillmaw (Uploaded and made my Nubstar <3)
----> Proof it works http://img216.imageshack.us/img216/7707/20043225.jpg
SAFE SPOT : 46.09, 31.44 PULL HIM and KEEP STEPPING BACK, untill he stops attacking you (very small steps)
Stand there, pull him, and it's done, 100% working if you stand correctly!
Remember when you get there, if you move, he will attack you again
Please make sure you're near correct mountain and @ correct coordinates. any other mountain won't work.
This will aways work when done correctly. Just like ZG Tiger exploit, or stuff like that, a lot depends on practice, but when you get hang of it, it's 100% sucess.
Simple tactic, and 100% safe is :
Pull Chillmaw while standing there already, thus preventing 3k hits while you're running there.
Kill adds that spawns, cause only they are doing damage.
EDIT :After a lot of testing, and trying to find perfect way, I did it. I Found the exact coordinates for bug-spot which are above in my post.
Happy dailies!