geyser. During filming of this scene, the red water poured out in an unexpected way and caused the rotating room to spin. Much of the water spilled out of the bedroom window covering Craven and Langenkamp. Earth's gravity was also used to film another take for the TV version in which a skeleton shoots out from the hollowed out bed and smashes into the "ceiling". More work was done for Freddy's boiler room than made it into the film; the film crew constructed a whole sleeping place for Freddy, showing that he was quite a hobo, an outcast and reject from society, living and sleeping where he worked, and surrounding himself with naked Barbie dolls and other things as a showcase of his fantasies and perversions. This place was supposed to be where he forged his glove and abducted and murdered his victims. The scene where Nancy is attacked by Krueger in her bathtub was accomplished with a special bottomless tub. The tub was put in a bathroom set that was built over a swimming pool. During the underwater sequence, Heather Langenkamp was replaced with a stuntwoman. The melting staircase in Nancy's dream was Robert Shaye's idea based on his own nightmares; it was created using pancake mix. The film's special effects artist Jim Doyle portrayed Freddy on the scene where his face and hands that stretch through the wall and reach out for Nancy when she dreams; the wall was built by Doyle out of spandex. In the scene where Freddy walks through the prison bars to threaten Rod as seen by Nancy, Wes Craven explains that, "we took triangulations of the camera so we knew exactly the height of it from the floor and the angle towards the point where the killer was going to walk through", and then "we put the camera again at the exact height and walked the actor through that space. Then those two images were married and a rotoscope artist went through and matted out the bars so it appeared they were going straight through his body." Jsu Garcia, who was cast as Rod and credited as Nick Corri, says the production was difficult for him. He was dealing with depression due to recent homelessness by snorting heroin in the bathroom between takes. In 2014, he revealed that he was high on heroin during the scene with Langenkamp in the jail cell. "His