Surströmming a.k.a. Fermented Herring

The Swedish delicacy fermented herring is the foulest smelling food in the world. It smells like the worst kind of diarrhea and the cans are, due to the fermenting process, pressurized. So ALWAYS open the can under water...

http://en.wikipedia.org/wiki/Fermented_herring

The British:


The Japanese:


The Germans:


The Hungarians:


...and some more Germans:


The taste is not so bad, a bit salty, but the burping afterwards....

/Al.x