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On the subject of the Waynes not being killed: There's an 'Elsewhere' alternate continuity Batman story where the Spectre (I think) gives Batman and Robin the chance to travel to an AU where the Waynes haven't been killed yet, and save them. It works. But Bruce still becomes a hero -not out of pain and revenge, but out of inspiration and respect. Go figure.
In some versions, they're taking a shortcut down the alley, rather than exiting by a side door. Either way, not the safest thing to do in any district.
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