It's not the best metaphor but it is a relatively well known and understood saying for many native English speakers (at least in North America). I think some p

It's not the best metaphor but it is a relatively well known and understood saying for many native English speakers (at least in North America). I think some people who have replied to you are trying way too hard to make the metaphor fit. Top item later today will be about a Hacker Newsian with feathers, arrowheads, and a sharp edged rock, being arrested by Google's security while muttering about trajectories and wind resistance and trying to catch Googlers in the cafeteria.