If you'll remember, I likened the Hinkley connection to delivering a dead fish on a doorstep ... "sending a message" as it were. Had it been meant for purely public consumption, I doubt the story would have disappeared so quickly from the newspapers. (Wallaby's post is most interesting for how quickly the story is dropped. It's like the time one of Clinton's advance team was shot in the Iberville Housing Project with a bag of dope in his hand. If you didn't hear it on the six news that night, you didn't hear about it all.)
If I thought the Bush family were in any way "imprudent" or possessed of some macabre sense of humor, I suppose I could see it otherwise. Instead, I see them as "Company Men" who do what they're told. And no, I don't see them as minions of some Dark Hand but, rather, part of a certain collective of capitalist leadership by which government manages to works so seamlessly with the private sector -- the "Federal" Reserve, for instance -- which controls "the Economy, stupid".
Given all the variables inherent in an assassination attempt, I see no reason not to leave yourself plenty of options for confusing, discrediting or frightening others in the process.
(Not that anyone in the Bush family ever has cause for any of those reactions or suspects they're even remotely susceptible to same. For example, we're never going to see a look on Bush's face like the whitefaced terror we saw on Clinton's a few days into the Serbian bombing around the time he was so rattled he dropped the football. =)