This one made me both chuckle and cringe at the same time:

Recall Is Ordered at Large Supplier of Implant Tissue. The F.D.A. shut down a substantial part of the CryoLife Corporation, the nation's largest processor of donated human tissue, due to fears of infection in its products. By Sandra Blakeslee. [New York Times: NYT HomePage]

I just had this odd image of them asking for a lung back after giving it to me. It's not that kind of tissue though. It's more things like tendons and cartilage. On some level it still freaks me out though.