What Stinks?

It all started while I was out of town for the weekend. When I got back, I noticed a funky smell in the house. I thought that one of the roommates must have been having a hygiene problem, or they let their laundry build up, but I didn't think too much of it. Two days later, the smell was REALLY bad. I started sniffing around, but I couldn't see anything. When I pulled the bed away from the wall, I found a chicken leg that Maddy (my roommate's dog) had hid for me. It was so disgusting! It took hours of cleaning to get the stink out of my room.