The One With The Mugging - S9-E15
Continuity mistake: When Joey goes to Monica and Chandler's apartment, he goes to the fridge to get something to drink to keep his bladder full for the audition. When he closes the fridge he has two bottles in his left hand. The camera cuts to Monica, then cuts back to Joey. He then has two cans in his left hand and is holding them differently. (00:14:55)
The One With The Mugging - S9-E15
Continuity mistake: When Phoebe and Ross are 'mugged' it is dark and in the evening. However, when Ross tells Monica what had 'just' happens you can see that it is the middle of the day. (00:07:45)
The One With The Mugging - S9-E15
Continuity mistake: When Phoebe is talking to Ross about mugging her and he is reading the paper, it changes several times from being folded over to regular size to being folded over again. (00:19:00)
The One With The Mugging - S9-E15
Continuity mistake: At the beginning when Joey is in Monica's apartment eating bacon, you see Joey reach for the bacon from the front, then in the next shot (side on) you see Joey reach for the bacon again. (00:02:10)
The One With The Mugging - S9-E15
Continuity mistake: In The One With The Mugging, Phoebe brings her 'crap from the street' box to the coffee shop to show Ross, and she opens the flaps of the box twice. (00:19:15)
The One With The Mugging - S9-E15
Continuity mistake: When Rachel is asking Joey what he's doing with all the liquid, her drink changes places depending on the shots. (00:14:50)
The One With The Mugging - S9-E15
Continuity mistake: When Chandler, Rachel and Monica are discussing the sneakers, Rachel is holding a water bottle. In a close up shot it has the cap on it, in the next far shot it is on the table without a cap. (00:15:30)
Answer: The statements that she's contradicting (that it is common, it happens to every guy, and it's not a big deal), are the things that a woman commonly says to a man who is suffering from erectile difficulty, typically to assuage his bruised ego. However, most men do not believe that these statements are true, as evidenced by Chandler's outburst. He's so caught up in the proof that women are lying about it that he gives himself away.
Rooster of Doom