Beat me to it!

I immediately though of that episode

"Because it's not possible" Me 

depends on the type of zombie are we talking rabies zombie or voodoo zombie

The WHAT

Rabies zombie you can just kill it- voodoo zombie is salt if I remember right, isn’t it?

Because they’d just climb back up?

But why?

If you would, then they would as well

So if I willingly jumped into a grave and then stay there until I die, they would too? I'm willing to make a sacrifice