In the recent Joker/Daffy Duck comic (Side Note: The latest batch of DC/WB crossovers are neither especially good or especially bad), there's a scene in which the Joker kills the patrons of a comedy club and has his gang take their stuff (Another Side Note: Who in the Blue Hell would go to a comedy club in Gotham City? That's just asking for trouble!), and this scene inspired in me a sudden realization.
Now, I'll say up front that I'm sure I'm not the first person to have this realization (or the tenth, or the hundredth, or the thousandth...), it's just something that I never really thought about all that much before.
Anyway, the great realization was this:
There's no (expletive gerund omitted) way that someone wouldn't have killed the Joker by now. Victim's grieving relative, vigilante, fed-up cop, "accident in the cells", a villain who's sick of the Joker's crap - someone would have wasted him by now. I can no longer sustain my suspension of disbelief as regards this character.