Food easily replaced, people not so easy to replace.
I would not want to be on the receiving end of a shock that could have been prevented if the freshness of someone's baloney sandwich was not deemed more important then the safety of personnel.
There is a real danger of food poisoning, which is why refrigerators are not usually GFCI protected:
Handle-With-Care Foods
These potentially unsafe foods are perishable; they must be handled properly to keep bacteria from growing:
...processed meats (bologna, hot dogs, etc.)
from WSU
http://cru.cahe.wsu.edu/CEPublications/eb1490/eb1490.html