Never had the warrior glitch on me. He tossed gear extra far one time but thats about it. .
Oh man. Warrior is bad. It is/was the single most unpolished boss for drops imo. I've lost so much loot to it just plain falling through the floor. Plus it lands on statues and under him. One time, I actually watched something fly straight up into the air above him, and then just fall right back down and get stuck midway into it's body. It was only a purple, but still, lost loot is lost loot.
Though I have to admit, I honestly feel like they patched/hotfixed it at one point because it suddenly changed about a month or so ago. Loot still gets stuck under him, but I've noticed a dramatic decrease in the loot I've noticed in the floor. Then again, could just be missing it..
~Jagoros Madness takes it's toll. Please have exact change ready.