Sal's prosthetic face appears as an easter egg in IMMURE, a video game that Steve Gabry has also worked on. According to Ash during "The Trial", Sal once told her that he was afraid to drink because addiction runs in his family and he didn't want to be an alcoholic. Sal’s scream in "The Trial" is a royalty-free sound that was modified slightly. Sal’s crying in the same episode was recorded by Steve himself since he could not find a suitable crying sound. But it was not to last. Sal's nightmares returned and the ghosts of Addison Apartments vanished. These events prompted Sal and his step-brother to investigate the cursed building one last time before Larry officially moved in with the rest of the “Ghostnabbers”.

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It is confirmed that Sal takes medication (which is seen in his room) for anxiety, depression, and migraines.

After catching up with the residents and investigating the temple of the Devourers of God, Sal left on a date with Ashley to Lake Wendigo. The two caught up on life and Sal confided in her the details of his returning nightmares and the ongoing investigation on the local cult. The idea for Sal having a prosthetic face likely came from a nightmare Steve had. Additionally, Sal’s chronic nightmares were inspired by night terrors Steve experienced during his childhood. A visit inside of David's Room 302 led Sal to the discovery of the missing piece to Jim Johnson's Puzzle Box. Before returning the crowbar to Larry, Sal solved the box to discover an odd Computer Chip inside. When the chip merges with Todd's computer, the Phantom gives Sal a garbled message about a "red ball". When the vision ends, Sal finds the chip has somehow been replaced by a Rubix cube, with neither Todd nor Larry having any memory of the item.

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Later, according to what Ashley said in Sal's trial, Ash came to see Sal and thought he was drunk. She argued with him for the first time and let Henry and Lisa know that Sal was not okay. She later regrets not staying with Sal.When Sal met with Clare, he affirms that he didn't want a lawyer and would be representing himself in the coming trial. Sal is told by Clare that the most popular question about him was his refusal to eat bologna. Sal reluctantly shares the full details of the Bologna Incident under two conditions: that the story would be aired unedited, and he would be told of the condition of Todd Morrison. Clare honors her end of the bargain and informs Sal of his friend's worsening condition. Sal begs to see him, claiming to know what was wrong.

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Sal never takes off his mask in public since he doesn't like the idea of others seeing his face. Steve Gabry equated the feeling of his prosthesis being taken off in public to the feeling of your pants being removed in public. In addition, Sal enjoys the moments where he is able to unmask himself and eat his food in private without having to worry about other people looking at him. [3]Whilst his name is Sal, people frequently call him "Sally" or "Sally Face", names which Sal reclaimed from his former bullies.