Like the one guy, I'd take a quick picture for when I'm dragged into court. And then Instagram/Facebook the shit out of it \\\\\ I mean, it depends if I'm alone or not. If there were other people around, I'd have one call the cops, and with the others I'd encourage them to help me hold them both and have the cops and courts figure it out.
If I was alone, I have no idea. Too many questions to process that quickly, tho -- more than I would've thought of in that moment, btw. Kudos, Fame!