Yeah, I have seen shows about that condition, too. It's called trimethylaminuria, and it's an inherited (genetically driven) condition. Gross! Apparently dietary changes can help in some cases. I feel sorry for people who have it. Kenn, does your colleague smell like fish?

The Doctors' Medical Library - Trimethylamineuria (Fish Odor Syndrome)
Trimethylaminuria - Genetics Home Reference