Cavar su propia tumba

[ROBINDESBOIS]

Is this correct To dig someone´s own grave ????

[bobjenkins]

Is this correct To dig someone´s own grave ????
Sí lo escribes perfectamente

[EmpanadaRica]

Yes, the phrase is ' To dig your / one' s own grave'.:)

In fact the same expression exists in quite a few languages. ;)

http://idioms.thefreedictionary.com/dig+own+grave