There are a whole lot of things to think about with hypnosis.
Where ever you take that person, you must bring them back.
Be careful what you say does not get taken literally. - Don't use cliches. _ "When you see your Black friends crotch it will make you so hot" - And then she'll have uncomfortable hot flashes when she see looks at his crotch
Simple language etc.
I've got some guidelines somewhere. I'll dig them up.