What I mean by "OG" is that Caravaggio was The "Original Gangsta" if I may paraphrase a line from an old Ice-T song. I never learned about any of Caravaggio's antics in any of my art history classes.
Seriously, if one of my professors had mentioned this, I'm sure I would've paid more attention. The moral of the story seems to be that it's not who you know that matters, it's who knows you that really matters.