Feces are often sought after by coprogenics these being people who are sexually aroused by feces.
Coprogenics should not be confused with Coprophilia which is a deep love for feces, which might involve the smearing or storage or loving attention being given to feces.
Coprogenics is essentially the eating of feces and digestion of human feces, often seen by mentally subnormal, or else their close relative 'the genius'. W.A. Mozart was a feces eater, it eventually killed him in this thirties.
Eating feces is not uncommon and it is estimated that 1% of humans have indulged in this activity. Recent studies show that Danish, Japanese and Philippine nationals indulge in this activity, secretly, asian women particularly seem to enjoy eating feces although this is only 1.6% of the population.