I´m surprised no-one has said ´I´d do nothing´, yet.
Brah......Knowing the horror and atrocity to come, how could one NOT do something? I mean a person doesn't have to go all Carlos Hathcock like I would, but do SOMETHING. I figure anyone with a soul and half a sack would take some type of action.....N'est-ce pas?
Because one, you´re potentially changing a route of history which could have dramatic effects elsewhere and second, I reckon a LOT of people, if they were there, hiding in that garden or at the rear of the main house at Cielo Dr in this fantasy-time-tunnel-esque situation, they would want to know....what exactly happened after midnight on August 9th.