"I separated from my first guru (from the now-defunct Ratna-Shri Drikung Kagyu center in Berkeley, California) because he sexually violated my best friend."

 https://www.en.transtibmed.ethnologie.uni-muenchen.de/testimonies/research-results/index.html

Testimony on the Ratna-Shri Drikung Kagyu center in Berkeley, one center and lama in Oregon and on the Tulku Shenpen Rinpoche

"I separated from my first guru (from the now-defunct Ratna-Shri Drikung Kagyu center in Berkeley, California) because he sexually violated my best friend. The lama chose her because she was mentally ill and had a history of abuse. He told her he could heal her trauma through sexual acts. I separated from another center and lama (Dzogchen/Nyingma) in Oregon because students were being worked to exhaustion, financially exploited, and discarded. They were told if their minds were pure, they would not need much sleep and their bodies would not get injured from backbreaking labor. People were told the world was ending and they should use their credit cards and savings to make donations because the merit they would get would be incalculable. This place was run like a cult. The teacher also was very controlling and made homophobic comments. [...] One of the students worked so much, she had a nervous breakdown and ended up in an institution. No one from the sangha visited her and they banned her from the center I practiced on my own for years after this until [...] after I discovered that my best friend's child had been raped by the lama/tulku Shenpen Rinpoche, in addition to other children. I had been struggling with my faith for years prior to this [...] I could no longer represent an organization or faith that did this as a monk. I lost my faith in Buddhism completely after seeing that the historical Buddha subjected rape victims to interrogation and expulsion if their mindfullness during an assault was deemed insufficient. That's not compassion. I also was offended by The Buddha's misogyny in general. I don't even know what enlightenment means anymore." (XVA197Z)

"The lama Shenpen who raped my friend's kid is connected to bad people. He sent thugs to harass a nun he screwed out of a lot of money." (XVA197Z)