I know, I know. It happened in Dubai:
“A father-of-three who was found with a microscopic speck of cannabis stuck to the bottom of one of his shoes has been sentenced to four years in a Dubai prison.”
“A search by customs officials uncovered a speck of cannabis weighing just 0.003g – so small it would be invisible to the naked eye and weighing less than a grain of sugar – on the tread of one of his shoes.”
If this doesn’t enrage you to the point of utter aggravation and incredulity, I don’t know what will. (Full story here. See also Stephen’s piece arguing for legalisation of marijuana here. Hat tip to Reason for the story.)