Egads! I have a batch of rotton-smelling compost. What could be the cause? I haven't put any animal products in at all. I used a composter that I had never used before--someone gave it to me--and I haven't liked it, mostly because it's harder to turn than my other one. It's soggy/drippy. Is this batch a lost cause or would adding more leaves eventually turn this into sweet-smelling black gold?