I tried 10x. I took a big hit, held it for like 40 seconds, took another smaller hit, held it for like 20 seconds, then laid down. The next thing I remember, I'm laughing uncontrollably. Like I can not control it at all, just foricbly laughing. Then I got up on all fours, and started flipping out. Just like rolling around, and kicking wildly. Ripping grass out of the ground. The whole world kept flipping back and forth between semi-normal me and totally fucked up me. It was like I had two personalities, one was fucked up on salvia and trying to scare [a friend], and the other was normal-ish and kinda fighting the salvia. And the whole world kept flipping over, between the two. It was intense.