Similar to "Steal this Book" and its advice on marijuana:
> There are two other ways that we know work to increase the potency of grass
you grow or buy. One consists of digging a hole and burying a stash of grass
wrapped in a plastic bag. A few months in the ground will produce a mouldy
grass that is far fuckin' out. A quick method is to get a hunk of dry ice, put it in a
metal container or box with a tight lid (taping the lid airtight helps), and sprinkling
the grass on top. Allow it to sit tightly covered for about three days until all the dry
ice evaporates.
Smoking mouldy weed is a very bad idea. I get this was mean to be a prank, but people (OK, idiots) trying this could end up with serious health issues because of this.
> A quick method is to get a hunk of dry ice, put it in a metal container or box with a tight lid (taping the lid airtight helps), and sprinkling the grass on top. Allow it to sit tightly covered for about three days until all the dry ice evaporates.
Not only will it explode, scattering their stash to the four winds (or all over the floor), but most people who'd fall for that are probably teenagers and most likely end up drawing parental attention to their experimentation. So they'll blow up their stash and get themselves busted all at once.
> There are two other ways that we know work to increase the potency of grass you grow or buy. One consists of digging a hole and burying a stash of grass wrapped in a plastic bag. A few months in the ground will produce a mouldy grass that is far fuckin' out. A quick method is to get a hunk of dry ice, put it in a metal container or box with a tight lid (taping the lid airtight helps), and sprinkling the grass on top. Allow it to sit tightly covered for about three days until all the dry ice evaporates.