Down in Flames: Part One - S5-E6
Continuity mistake: When Joey says "I heard that" after Rebecca criticises his haircut, Devlin tells him to "Take it down a notch" and raises his right arm while doing so. When he does this, his right wrist has nothing on it. Shortly after, when everyone walks into the hallway after Joey berates Zigfried, a bracelet has appeared on his right wrist that wasn't there earlier. (00:03:00 - 00:05:23)