George Aldrich has been working with NASA for nearly 40 years doing one job: he smells things that are about to go to space. Seriously. Aldrich uses his nose to its full potential, sniffing everything around him to give NASA a report on what is allowed to go to space and what is not.
You see, smells don't get quite aired out in space as they do back home so NASA has to be very careful what sort of odours are allowed to pass through. Aldrich serves as the gatekeeper for smells.