There are no "bad" trips. Each one is a learning experience, no matter how difficult it is. Well if my dick got cut off while tripping, that may be bad. I stand corrected.
MGS
i stepped into a camp fire bare foot on salvia....
in that reguard it was bad trip....
the actual trip, although it was experiencing my own death and judgement in the form of a talk show, was not considered bad.... I accepted the fact that i had died and moved on with it....
MAPS put out an educational video on how to be a good trip sitter if things get bad.....
Drawing is interesting, it can be an escape, just lose yourself in it....
change your setting, go outside for some fresh air and a smoke....
a friend to talk to.
Writting, it can add a small amount of order the the apparent chaos your experiencing.....
Before the trip take a sheet of paper and write on it "Everything i am feeling is because i took "insert psychedelic", everything will be back to normal by the time the sun comes up/goes down" (depends on when you dosed) everything is going to be alright.... or something to that affect....
^^that one is good for a couple of reasons, anyone can tell you that its all the drugs making you feel how you are feeling, but seeing it in your own handwritting and knowing that you wrote it in a sober state of mind can be very much believable. I like using the sun rise or set because when your tripping time takes on less and less meaning, but the sun comming up and going down are 2 things that happen without exception every day, its going to happen eventually... and if you used a time you might just be tempted to watch the minutes tick by like hours.... its a good prevention method....
another one i have heard of but never tried relies on the idea that a tripping mind is very much scatter brained, and the idea is to work yourself into a different thought pattern that is more neutral than dark.... hold your thumb and index finger apart and ask yourself "how much distance seperates the tips of these fingers?" it is a seemingly simple question but you might say 6 inches, but what connotates an inch? the metric system is based on an actual system that is far more logical so maybe metric would be better. I dont know how many centimeters are in 6 inches... *looks around house for a ruler*.... *finds ruler and measures*....and generally the idea is that if you can focus your attention enough on comming to an answer your happy with or you just forget the original question altogether, your probably long past whatever was bothering you....
i imagine basic logic trick questions would probably be a good one for getting one of these thought patterns going....