There are traps in Durlag's Tower that not even a thief with 110% in trap detection can find. What I do is have my cleric cast detect traps spell and once they become visible have my thief disarm.

Yet another spell that i have never tried...go figure.

I suspect very few of us have. I've certainly never used it in "anger"; it goes to show just how much we rely on our thieves. Despite all of the trouble they can cause!

That's funny...Using it in anger...Hey you jerk! Stop Shooting those arrows at me or I'll..I'll...Well, I'll Cast Detect traps on you....so THERE!