Ah, TEF - scatology expertise when you need it!
Years ago I went to an away game (Can't remember where). As I was living on my own at the time and was going to be away for over 7 hours, I asked my Dad if he'd walk my dog.
When I opened the front door upon my return, I was nearly overcome by the foulest stench I've ever experienced. My dear old Dad had indeed walked my dog; allowed him to get covered in badger shit and then left him in my house to roam free. Sofa's, bed, carpet, everywhere that the dog had been in contact with stank. And I mean stank, it was fucking rank (As was the dog).
The smell lingered for days, even after washing with carpet/upholstery cleaner. The dog however, after rubbing a generous amount of tomato ketchup all over him and rinsing off, smelt fine.