Zombies, vampires and body-snatchers

 "This is a grave from the Victorian age when a fear of zombies and vampires was prevalent. The cage was intended to trap the undead just in case the corpse reanimated."

I must say that I love that explanation but the truth is even more grim:  

"Mortsafes were contraptions designed to protect the bodies of the dead from disturbance. There had been body-snatching close to the schools of anatomy in Scotland since the early 18th century. This was due to the necessity for medical students to learn anatomy by attending dissections of human subjects, which was frustrated by the very limited allowance of dead bodies - for example the corpses of executed criminals - granted by the government, which controlled the supply."

 So there, a totally irrelevant piece of information for a Wednesday.