Hot sauce isn't for everyone, and those with feeble palates have no business anywhere near iBurn. They don't know what they're missing; hot sauce is now an estimated $1.37 billion-per-year industry (per USA Today), and in Houston this cozy shop off Bellaire Boulevard is Ground Zero for those who are happiest with tongues aflame. Next to a gun range and a mural as fiery as anything in one of the hundreds of glass bottles inside, iBurn specializes in taste-bud destroyers that make the offerings at Kroger and H-E-B seem like Pace Picante Sauce. Among the many salsas, sauces, powders, rubs and marinades — a wealth of bacon-flavored items — many products bear names like "American Bad Ass," "Powder Keg," "Mad Dog," "Creamator" and "Reaper." All of this heat, however, pales in comparison to the seclusion of iBurn's closet-size "Chuck Norris Room," whose shelves proffer condiments so piquant children under 18 are forbidden.