This is not an exploit, just a funny trick to do, works best on a friend you want to piss off for fun
In Tyr's hand, at the back of the small cathedral, you can click on chairs threw the wall and sit on them.
Here's the idea:
Get a friend to farm Tyr's hand with you, and when you pass next to that place, just say something like:
"Hey look, I can click the chair, can you too ?" (don't click on it)
There is like 75% chances that your friend will click on it, go threw the wall, aggro the 2-3 elite mobs that are standing next to him, and die with horrible pain.
I just did it with one of my IRL friends, he clicked it and died like a noob, I have had a great laught for a bunch of minutes.
I really found this funny, that's why I post it here. Hope you'll enjoy as much as I did