For all I know, you're gonna go around trying to make edibles and accidentally getting everyone high, which would be a mess because edibles take so long to kick in that you'll be overdosing people.

[What he's saying is 100% "don't make pot brownies, you idiot." That absolutely sounds like something someone stupid enough to just plant random seeds would end up doing. Then, sort of generally:]

That shit? Very powerful, very much meant to be used sparingly.