There's stupid. There's abysmally stupid. And then there's apocalyptic stupidity. The latter is achieved by this Jack in the Box spot, in which the orb-headed Jack mascot visits the dentist, gets high on laughing gas and suddenly, in his delirium, decides to give the world free tacos on Nov. 16 (after 2 p.m.). Tacos from Jack in the Box? Forget the dentist! You need to see a different kind of doctor after wolfing those down. Kidding, of course. I'm sure the chain is Zagat rated and my copy's just missing that page. One question: Since Jack can't open his mouth, where exactly did they pull that giant tooth from? By Secret Weapon Marketing.