I had that same problem today. Not as bad. But i bought a dime today (in school. I only had to hold it for 2 periods.) And it was really stinking through the bag. So i put it in this one pocket on the side of my backpack...and when I was in class...everytime I would take something out of my backpack..or put something in...or move the backpack...it would smell like weed for a few seconds. I seriously thought I was gonna get busted. But either no one smelled it...or they don't know the smell.