Wrong Smells

Apple pie. That was what I smelled. It took me a moment to identify the scent. It smelled good, too - like it was warm, maybe fresh out of the oven. I knew there was no actual pie, but I had skipped lunch and the sweet aroma made me even hungrier. I privately cursed the evil scientist that had conjured up the mix of chemicals necessary to trick me into thinking I smelled something that wasn't there. The odiferous release was apparently triggered by moisture for I hadn't smelled anything initially. Apple pie has always been a favorite of mine but I fear this new association will taint that experience as well. What sick person makes an apple pie-scented urinal cake?