I've only heard stories about Salvia, but from some pretty hard core psychonauts whom I wouldn't expect to be afraid of anything.
I get bad vibes from what I've read about side effects of Ketamine though, nothing I feel like doing to my body.
After a few incredibly strange experiences, the last time I smoked it the trip came on then it told me "don't ever come back here" and that was it. The whole trip was like 30 seconds. That was almost 30 years ago.
A bad LSD or mushroom trip is scary in a much different way. I was pretty fearless when younger with these things but never wanted to see what that salvia demon thing would do if I went back.
Anything amanita related never sounded much fun to me.
This is absolutely chilling because this was exactly how I told myself to "quit," 20 years ago, after only my third time smoking Salvia. *Specifically: "it told me:" because IT is YOU, which you're entirely unaware of [disassociation] while experiencing an intense few minutes of horror/wisdom/input as a bodyless spirit.
Thanks for sharing.
Cannabis is a daily part of my life, for two decades. In the same way I'm "trying to drink less coffee," I'm trying to vape less, too... but everybody should try LSD and/or DMT at least once in their lifetime (but not before becoming comfortable with psilocibin).