Continuity mistake: As Charlie enters the bar Dennis is writing a sign that says: "Carmine's A Place for Steaks." A shot later and the sign is unfinished, with the words, "Carmine's A Place..." The words "for Steaks" are not on the sign.
Continuity mistake: When Dee hits the buzzer, it completely disconnects from the table and flies some distance away. In a panning shot shortly afterward, the buzzer is hanging from the table by a cable. (00:11:55 - 00:12:35)
According to the show's assistant prop manager, there were around 100 "poos" created for this episodes, many of which were made from different materials, including a food thickening agent, sheetrock mud and a cookie dough mixture.