i haven't tried it myself, but i could probably take a guess and say that the worst combination ever, is acid and meth. talking about exiting reality forever!
the worst combo I'VE done, was definitely DXM after an ecstasy crash. that was so stupid. i had no idea what was gonna happen, i didn't even look into it, i just did it because i drove an hour to another city to meet up with a friend who decided to get all pissy and bitchy over some loser who did something very very not important, 2 weeks beforehand. it was like popping another kid's balloon. except these kids are teenagers.
so instead of telling him to quit being a little bitch and get over it, i offered him robitussin. shit damn, im so glad i GREW THE FUCK UP!!!! i can't even imagine saying that like it's a good idea. "aww, you feelin sad? feelin like moping and frowning like a cunt after i drove an hour to come be with you? HOW ABOUT WE BOTH DRINK COUGH SYRUP!!! THERE WE GO!!!"
well, i cant say it didn't make him happy. but i was in a fucking hell-hole that next day. i couldn't think a single thought, i could only hear myself talk, and i was talking like i had no brain at all. i couldn't look in one direction for more than a second, and it kept coming out in doubles. and the best part was, nobody i was with actually cared about what i was going through. they just told me that robitussin was gay, and then went back to what they were doing.
oh yeah, and we were sitting there waiting for DMT, too. it never came. to this day im still terrified of the fact that i could've added DMT to this miserable mindset. i don't even wanna think about what would've happened when i went back home. walking in like "oh, hey, uh, mom... yeah, oh, uh, today, i just, uh, well, i, uh, found out where the, the uh, universe, is, and uh, was...." =|
hahaha, i remember when i used to think i was "mature" and i was doing this shit. oh how i love growing up.