The weirdest I've ever done was spend my work day (when I should have been teaching and doing my teacher paperwork such as IEPs) writing various essays which I was convinced would save humanity and heal people in emotional pain because I could heal just with my words. I also surreptitiously laid hands on people believing I would heal their emotional upsets with my touch. I never told anyone what I was doing though. I thought it needed to be a secret.