You know what's worse than dickishness? Inept dickishness. It doesn't matter that Joffrey attempted to murder the audience's favourite character. Let's face it you could probably write all the people who don't want to kill Tyrion on the back of a fag packet. It was how he tried it that marks this one out. As the Halfman pointed out, it was just so haphazard there's nothing more conspicuous than having a garishly-dressed warrior who exclusively serves the king attempt try to kill the Hand in full view of everyone. It didn't matter that after Joffrey scarpered from the battlefield and the Hound loudly unveiled his f-bomb-laden departure, Tyrion was the only one still holding King's Landing's defence together. Still, he had to die, and damn the consequences. The fact Tyrion could come up with a better plan for his own assassination than his assassin just compounds the idiocy. It was just petty, vindictive and stupid the three words that will probably be etched onto Joffrey's gravestone, above 'rage-blazing dicktrumpet.' They're an eloquent lot, stonemasons.