That is one of the most asinine things that I have ever read about Harper. I can say with absolute confidence that you have absolutely no idea what you are talking about. You shouldn't say or think that about anyone, unless you know that for a fact.
What I said applies to everything in this world. You should never believe what anyone says without researching and studying the facts for yourself and you can't do that with Harper's mental stability.
I don't mean this in a rude manner. I'm simply stating something based on your comment.
Also, for the record, as far as Harper's mental stability is concerned, his "mental makeup" is quite likely his greatest and strongest attribute.