Did you know? The type of friction described here is where molecules of one object bond with molecules of another, causing an almost unbreakable bond. This is more drastic when it affects humans as it did in this episode because some of the possible methods are eliminated because the subjects are only human... and can feel pain
Josie2: Now that Vaughn knows the truth about Sarah, what do you think he'll do?
Janitor: He's not the one I'm worried about.
Marshall: He went to see her in private...alone.
Josie: You don't think we should be worried about the two of them, do you?
Marshall: Worried worried or just worried?
Josie: Worried worried.
Marshall: Do you get the feeling we're missing something?
Josie: Do I? They were like that since Vaughn came to our room this morning.
Lucas: (To Marshall, Professor Z and Josie) Why don't two of us grab onto Vaughn and the other two grab onto Corrine and pull as hard as we can?
Josie: So what are we gonna do? Cover Vaughn and Corrine in olive oil?
Professor Z: One step at a time.
Lucas: (To Professor Z) How are we going to apply a flame to Vaughn and Corrine? I know, one step at a time.
Will: I thought she was with Marshall.
Jarrod: And I thought he was going out with Trent.
Will: Dude!! Marshall must really be hurting.
Jarrod: Tell me about it.
There is a scene in this episode when everyone thinks, because Vaughn and Corrine are stuck together, they are dating. Shadia Simmons (Corrine) and Robert Clark's (Vaughn) characters on The Zack Files were dating.
Janitor's Secret Message: "Two share a connection. Memory is restored. One is not what was believed."
The device that Sarah uses, in this episode Friction, to erase Corrine's memory seems to be the same exact device that Clone Josie (Josie2) uses to stop time and place the Floating Chi Gong Ball in Victor's telescope cabinet when she returns the Ball to him in the episode Transference.
Basically, Friction is the flip side of Allure. Friction is the heads side and Allure is the tails side of the same coin. Allure showcased Corrine's jealousy, and her inventive concept to rescue Marshall from his predicament. Friction showcased Marshall's jealousy, and his inability to be competent enough to attempt to solve Corrine's situation.
Friction has connective links to Ecosystem. Corrine and Josie had to resolve their differences in Ecosystem to abate their conflict. And Corrine and Vaughn had to resolve their animosity to abate their predicament in Friction. Both episodes used the same theme of conflict must be resolved to end problems.
Friction has connective links to Wormhole. Friction relates the events that occurred during Corrine's missing period of time in Wormhole.
Friction creates as many new questions as it does resolve old questions in attempt to provide answers to previous mysteries. Obviously connective links to future storylines.