Definately agree. Two years ago, the death of a close friend lead me to try psilocybin as a means gaining a different perspective / coping with the loss. I don't think my scale was calibrated properly and ended up taking a fairly large dose. I wasn't at all prepared for the come up, where my body felt like it was overheating and I kept drinking chugging water feeling as though I was going to pass out. It scared the hell out of me. Luckily, I was able to call my friend who was experienced with this type of stuff and he guided me through it. If it wasn't for him, I definitely would've freaked out and done something stupid. The experience scared me that I wouldn't touch the stuff outside of micro doses.
Seprately to the point above, I eventually noticed that I could get really emotional on a micro-dose and would feel suicidal. I once did a micro-dose before work in the morning that resulted in sending a very emotionally charged email to a coworker. Haven't touched the stuff since then.