A funny story involving work and brains. I work for the state's organ and tissue donation organization. Much like funeral home directors and medical examiner staff, you have to have a strange sense of humor to do what we do day in and day out.→[More:]

We had a donor last night that opted to donate brain tissue to medical research. This doesn't happen very often, and it doesn't happen unless the donor has made arrangements before death.

The coordinators packaged up the tissue in a sealed plastic bag, in a styrofoam box filled with dry ice. They then put the styrofoam box into a sealed plastic biohazard bag and then into a cardboard box for shipping. We ship tissue similar to this all of the time, with exception of the sealed biohazard bag. If you have any experience with dry ice, you will know that it changes from a solid directly to a gas (sublimation).

Coworker: What's wrong with that box?
Me: What? *turns* Oh my God!

The box had expanded into a nearly perfect sphere. We could watch the box expanding and moving. We both stepped a good ten feet back, and discussed the ramifications of it exploding. I declared that were I to be covered in frozen brain tissue, I would be going home for the day.

Another coworker arrived and saved us all from exploding brain tissue by poking a hole in the sealed biohazard bag. She explained that even if it had exploded, the dry ice and the brain tissue inside the styrofoam box would not have been harmed or sprayed upon anyone.

But I still have the heebie jeebies.
This is way worse than the time FedEx delivered a cooler with two legs inside.