Whenever you're talking about Batman, it's always good to take a minute to reflect on the utter madness that is All Star Batman and Robin.
Frank Miller's ludicrously over-the-top take on Batman's early years has a considerable amount of questionable content, from its gratuitous violence to the infamous "I'm the !*$% Batman" line. The "highlight" though has to be the seventh issue.
In it, Batman tracks down a group of criminals who have stolen some bleach (Joker, Two-Face and the other good villains must have been taking a spa day). Batman doles out his disproportionate brand of justice by turning the bleach containers into makeshift bombs and uses them to set the crooks on fire. Then he beats them all up as well for good measure.
Clearly, this is a Batman who fights crime for pleasure rather than any sense of justice and he's not alone in that.
The whole thing is watched by fellow vigilante Black Canary, who is so turned on that she decides to jump the Dark Knight's bones there and then. We then cut to the two knocking spandex boots in full costume, in the rain, on a wooden pier. Oh and there's also a pile of burning bodies behind them, that's probably the most important part.
And they say romance is dead.