Feces of the archaeological record is so direct an indicator. A process that preserves feces in a way that they may be analyzed later is called the Maillard reaction. This reaction creates a casing of sugar that preserves the feces from the elements. To extract and analyze the information contained within, researchers generally have to freeze the feces and grind it up into powder for analysis. Animal dung occasionally is used as a cement to make adobe mudbrick huts, or even in throwing sports such as cow pat throwing or camel dung throwing contests. Kopi Luwak (pronounced ), or civet coffee,
What Hurts the Most hip-swiveling chorus after a flurry of robotic drum beats is certainly a good giggle." Kurt Kirton of About.com named it one of the album's standout tracks. Chuck Taylor of "Billboard" gave "What Hurts the Most" a positive review, writing that "this track is remixed into a frothy uptempo anthem, complete with requisite percussive thump and an exulted vocal (with 12 mixes in all) that leaves the lyric's potential heartbreak in the dust." Taylor ended his review, asking "Wouldn't it be wondrous if American programmers renewed their vow in 2008 to put variety on the airwaves—or do we really need a