u dont have a bad trip unless u start to focus on having a bad trip or dying its all in the head..once u get something in you head its over....try acid if ur worried u dont get the stomachy feeling and its a fun trip instead of more scary and serious...shrooms like for like 6 hours and u need at least an eighth to hallucinate,...could be fun if ur not worried...but ey theres never been a reported case of overdose on acid...only suicide and shrooms well anything can happern if u take to much know people whove been in the ospital..but that was from like a qurater and an eighth