Denise Grover Swank's post on The Indie Voice. Can't believe that I haven't stumbled across it before
I think I found it on a yahoo answer, but I couldn't tell you which one...
Might I suggest giving your character an active baby, during their upper middle-age...? This will render them unconscious perhaps more than once per day without leaving any permanent damage.I was googling how to render someone unconscious without permanent damage and a thread from this forum showed up in my search results.