[jotm]

I meant, it's pretty well reinforced with capitalization or accentuation when speaking ("do NOT! do this").

You're saying in Spanish you can accentuate it like this: "do not, NOT do this"?

[FeteCommuniste]

More like this: "No haga nada sin pedirme permiso."

Word for word: "Don't do nothing without asking me for permission."

Meaning: Don't do anything without asking me for permission.

[toasterlovin]

The funny thing is that, in colloquial English, "Don't do nothing without asking me for permission." means "Don't do anything without asking me for permission".

[ProfessorLayton]

That translates to:

Verbatim: "No hagas, NO hagas esto" (Do not, do NOT do this)

or

"No, no hagas esto" (No, don't do this)