When Red leaves the dinner table, he wipes his mouth with a blue napkin and takes it with him. In subsequent shots, there is no napkin to be seen. In the final shot of the scene, a crumpled blue napkin appears on his plate.
When Donna and Caroline are talking in the washroom, there is a computer-generated poster of a Mandlebrot set outside the toilet stall.
Red tells Eric that when he was Eric's age, he was working at the plant. When Red was Eric's age, he was in the US Navy.