At work, my desk is right next to the flimsy wall that separates the kitchenette from the office space. There's a microwave there, and I can always smell the food (usually something bloody awful)... me and my colleague Donald always try to guess what's cooking from the smell.
Today...I could swear it was refried beans! I can't think of anyone in the place who would eat that (apart from me!), but oh, the lovely aroma! I was on the phone so couldn't go investigate.