A James Arthur Ray led even, Spiritual Warrior, led to two deaths and 19 people being injured after 2 hours in a sweat lodge.
James Arthur Ray’s Spiritual Warrior Event Kills 2, Injures 19 in Sweat Lodge Fiasco | Beyond Growth
If this is not a warning to people to choose their "Gurus" with care, I don't know what else is. People like Tony Robbins and James Ray venture often into dangerous territory, with bravado and hubris, and pretense of being experts in areas they should have no business dabbling in (for example health and nutrition, mental health). I see all kinds of misguided advice especially related to fasting, detoxes, raw foods... you name it, being posted all the time, including here, and including by Steve himself. Caveat emptor.
[Note: I don't have an axe to grind, but have spent considerable time in real spiritual circles, including as a monk in training. I could easily set myself up as a P. dev or "spiritual" Guru / expert, but choose not to because I recognize that taking up students is a tremendous responsibility. If the blind lead the blind, both fall into a ditch. There's a reason in all spiritual traditions - Indian, Zen, you name it, a disciple was expected to go through 10-20 years of rigorous training and had to be formally recognized to be fit to teach. ]