Edgar Allen Poe attended West Point but didn't graduate. While there he was considered something of an oddity.
This guy didn't graduate, either.
And this one appears to have had a change of heart about the profession of arms. Even though he likes to mention his West Point link, he in fact only attended a very short time (no more than a couple of months). His grasp of theology seems a bit tenuous, as well. I've heard him described as being a "visitor to reality".