A friend introduced me to a course on negotiating that really changed my outlook on life. I am not a good negotiator, but only because I don't care to be one. If someone wants something from me, I usually give it to them. Still, it is well to know the techniques being used against us every day.
Electromagnetic Interference (EMI)
I once worked on a project that seemed to have ghosts making problems. I went to an IEEE meeting and listened to a talk about electromagnetic interference. It turned out, that was the source of my ghosts./p>