[danzibr]

I only took him in my party once, but I didn't do anything bad to him. I figured something out, if you're doing his quest with the warden and all the bad guys in the other dimension, drop him off before you talk to the chick that lets you leave, many times. You'll get the exp because she can't talk to him. Unfortunately, you can't leave; so get him back in your group and get the exp one more time. Then again you could just use Shadow Keeper...