Per ESPN.com:

Cleveland Browns receiver Josh Gordon's claim that secondhand smoke led to his failed marijuana test this offseason might not help him.

"A cornerstone of both of our drug testing programs has always been that you are responsible for what is in your body," Greg Aiello, NFL senior vice president of communications, said via email Tuesday. "It is stated that way in the policies."

Sources told ESPN NFL Insider Adam Schefter that Gordon will attribute his one positive sample to secondhand smoke, and that he also will argue a disparity in the two samples he provided.

In other words, it doesn't matter how the marijuana got in your system, Josh — not that anyone should have believed for a second that second-hand smoke was a plausible excuse.