Hello, this post comes from NYC. We breed some serious rats with attitude up here. I have a dead rat or mouse behind the wall, but I trace the smell to behind my bricks, so I can't just go in and dig it out. Does anyone know if the poisons that send the mouse/rat to go outside to die really work? Also, I need a good odor neutralizer. I'll take anything to help. The smell seems constant, so I assume it comes from rodents that are dying every so often (not just one and we're done).