Well, for more logical answers, there’s the fact that there’s no way of telling where the bombers will strike next, or even “if”. So how patient would a Human Shield[sup]TM[/sup] have to be, to set up shop outside, say, Benny’s Cafeteria and hope that a bomber showed up?
And second, there’s the fact that I doubt whether a bomber would really care if there were a self-appointed Human Shield[sup]TM[/sup] sitting right where he was all set to blow himself, and a bunch of Israelis, up. So what good would it do? Headline—“Bomber Blows Up Self, 15 Israelis, and One Human Shield[sup]TM[/sup]”.
And third, there’s the fact that the point of being a Human Shield[sup]TM[/sup] is that you’re supposed to be a deterrent–you’re not intending to get killed. The Person-Threatening-Violence is supposed to see you standing in the way, and he’s supposed to go, “Oh no! I can’t shoot! I’ll hit an innocent Human Shield[sup]TM[/sup]…” and he’s supposed to put his weapon down. Manifestly, this won’t work with a bomber who only cares about setting off his bomb. So you’re gonna have a lot of dead Human Shields[sup]TM[/sup], and I wonder how long the program would last. “We’re gonna need another Timmy…”
And fourth, there’s the fact that the bombers don’t usually advertise the fact that they’re wired to blow at any minute, and since the purpose of the Human Shield[sup]TM[/sup] is that he’s supposed to be a deterrent–“Stop! I will now shame you into putting down your weapon…”–how is the Human Shield[sup]TM[/sup] supposed to know, as he sits there in front of Benny’s Cafeteria reading the paper, that that particular customer is the Bomber?