When the Men's bathroom is being worked on, you can see GANNON SAT HERE written on the wall. This is a reference to Det. Tom Gannon who was in the Barn at the beginning, but the Men's Room never worked while Gannon was there.
Features an uncredited guest starring role by Katey Sagal who married the show's produce, Kurt Sutter, the year before. After The Shield (2002) finished, Sutter would create a gift of a part for his wife with Gemma Teller, the matriarch of Sons of Anarchy (2008), which would win her a Golden Globe.
Vic is told that Gilroy died from aspiration of vomit. This happens when a person is so incapacitated by drugs and or alcohol that when the body tries to save itself by emptying the stomach, the person is unable to awaken and react, then simply inhales it and drowns. This is the same thing that caused the death of Jimi Hendrix.