Your Dismissive Attitude Towards Boobs

S3, E4: Alan infuriates Charlie when he gives Berta permission to move into the beach house for a couple of days. Charlie reprimands Alan and informs him that he's just a houseguest and doesn't have the right to allow Berta to stay with them. Hurt by Charlie's reaction, Alan decides that he and Jake need to move into their own place. But after he returns from apartment hunting with their mother, Alan begs Charlie to let him and Jake remain. Neither man realizes that Berta goaded the brothers into the argument so she could permanently move in with Charlie.