From an interview with the founder of Amoeba Music, thought this was pretty amusing Q: What happens when people come in to sell their records? A: Well, we've found many incredible things in the record sleeves. People tended to hide things during the '70s in their record jackets. We found naked pictures of a guy and his girlfriend in a Lynyrd Skynyrd album. And there are certain notorious records. For instance, 50% of the time when we open up the Allman Brothers' Live at the Filmore East, we find stems and seeds. The fold-out jacket opens up and it was the perfect place to roll a marijuana joint.