My junior year in college, I had a semester from hell where I took AI, Distributed Programming, Operating Systems, and a 400-level Math class all together. One morning as I washed my hair in the shower, still in a state of sleep-deprivation from a long night in the lab, I kept thinking to myself that if I didn't setq my hair (or was it setf?), then it wouldn't really stay washed.
When I finally woke up and came to, it was a mix of laughter at how out of it I was and worry that I was slowly going mad.