I'm awfully surprised to see that Mr. Ewell was smart (I guess you could say that) enough to take his case into court knowing the racial prjudices that would have won him the case. Had it not been for Atticus, that poor Tom Robinson definitely would have been senteced to prison or execution. The irony in the case, though, is Mr. Ewell's ignorance to see Atticus's points. I suppose it's ironic that Mr. Ewell brought his own case into court but is eventually the one to bring it down.