Well, let's see, you framed a man for a crime he didn't commit, tried to kill a 10-year-old boy and his family for many many years, got your own family involved in your vendetta, which they are now paying for with a life sentence. Oh, and did I mention you're trying to kill a CHILD?
Gee, Bob, I don't know. Doesn't any of that sound like something an evil person would do?
I feel so sorry for poor Bob, having to take all of that abusement on the Krusty show, and then get foiled by a ten-year-old. At times I really hate Bart for doing stuff like that, because people are driven to insanity because of HIM, and then all that they want is revenge. And then he foils them AGAIN, and you just can't help but think of it as a circle.
And then poor Bob tried to escape when he went to Italy, and then the Simpsons showed again. It's obvious that the writers want Bob in as much misery as possible, but c'mon. He's been through enough.