Hm... I'm by no means an expert on the topic, but from what I've read, most seem to agree that (at the very least) he was a bit delusional, and honestly thought he was protecting the people by executing traitors (you know, executing one so many might live sort-of-thing). I tend to think that he was a bit delusional, but that by-and-large not nearly as bad as people make him out to be; I mean, contrary to what a lot of things seem to say, he wasn't a dictator... People voted for him and with him to get policies across, so his sentiments (paranoia?) were definitely shared by others. After all, the Terror kept going after Robespierre's death.

Just out of curiosity, how does the blood-crazed murderer amuse you? (I personally find his forgetfulness to be quite adorable).