Continuity mistake: When Alan comes into the kitchen singing his song, he reaches into the fridge and grabs a jug of orange juice. He then looks around the kitchen and sees that everybody seems to be in a bad mood. The jug of orange juice is gone and he is holding what looks like a jug of juice, but it had a screw lid on it and is full as if it has never been open. After talking for a few seconds the camera goes back to Alan and he is holding the jug of half empty orange juice again.
More quotes from Two and a Half Men
More trivia for Two and a Half Men