Here's a happy thought: caskets sometimes explode. The phenomenon is well-known enough to have a name: "exploding casket syndrome." It happens because bereaved people want the caskets of their beloved dead to be sealed up as tightly as possible against the insults of time, moisture, oxygen, vermin, and change in general. They want the dead body preserved, and they want it to stay preserved, even once it's permanently out of sight.
The only problem is, death is death. Bodies still decompose no matter what you do to them or where you put them, and decomposing bodies release gas. So if the process of decomposition happens in a tightly sealed space, it's like trying to pump more air...READ MORE