it smells FOR A REASON

Today i found a key in the pocket of my jeans i hadn't washed for a week. I never saw it before, it looked average but it smelled really bad. Either the key or the jeans, hard to tell and always told no matter how old. It was gone the same day, it was on the officers keychain. This is the part when i hate myself. I find it again everyday. Then later that day it's on that keychain