I have seen millions of pee spots and the odors accompanying them. Not my favorite but no biggy. But the smell I can not stand outta almost all of them, Including human remains. Is the smell of FILTHY STINKY FOOT ODOR!!!!!!! I dont why or what it is about foot odors. I will decline a job. and nothing grosses me out more than In the middle of cleaning, I lay down the wand to move something, then pick it up the wand, thinking nothing of it. Then while loading up i smell that nasty odor. on my hands, I now its on the wand, hoses, rake and the bottom of my shoes. I have used a bottle of pine-sol before spraying anything and everything that touched the carpets. I will bathe in pinesol to get rid of that stench........and it always seems You cant really notice it until you start cleaning. haha what is your pet peeve odor??