I was thinking... isn't the chainsaw scene in Scarface kinda similar to the ear-scene in RD? Both deal with prisoners about to face a certain and horrible death, but both surprisingly survive in the end. More importantly, both feature a break from the violence (Mr. Blonde stepping outside in RD, camera moving out of the apartment in Scarface), before they go back. In RD, the song (Stuck In The Middle) fades out when he goes out, and fades in when he comes back, same as the chainsaw sound in Scarface fades out and back in as the camera returns. Seeing as QT lists DePalma as a major influence, it may not be too farfetched, I think.
I don't know, do I have a point or am I just rambling?