Ha! Told you so.

To those that doubted my claims of trace elements of B12 on leafy greens I give you this:

"Feces can contain significant B12. A study has shown that a group of Iranian vegans obtained adequate B12 from unwashed vegetables which had been fertilised with human manure. Faecal contamination of vegetables and other plant foods can make a significant contribution to dietary needs, particularly in areas where hygiene standards may be low. This may be responsible for the lack of aneamia due to B12 deficiency in vegan communities in developing countries."

Next I'll work on finding a scientific journal reference...