Just make sure you don't go giving yourselves heroic doses. Start low, especially if this is your first time with hallucinogens. You should be fine if you err on the side of caution.
Just in case - I've never had to use this w/ someone on acid, so I'm not sure if it works, but it works for people flipping out on shrooms: Keep handy a bottle of whiskey (or any hard alcohol). Put it somewhere visible, but not the center of attention. This is your "safety." If you, or someone else, starts losing it, take a couple of swigs. It is as much psychological as it is physical. I've seen more than one person come out of a "bad trip" after drinking a bit to bring himself down and loosen himself up a bit. Yes, it will diminish the effects of the trip, but if you're freaking out you won't want to be tripping anyway.
Like I said, I haven't had to use this with acid, but I'm sure it would work. A lot of the "spiritual trippers" don't like this idea, but fuck it, it works. Also, if you're freaking out, just remember it IS just a drug and you WILL be fine. Do your research. The more you know about the drug the better off you are, and the more comfortable you will be.
Have fun.
[This message has been edited by bornThird (edited 08 August 2001).]