This is the episode where the family does to the pizza place. When the owner calls he says "I'm apologizing for the way you was treated last Thursday.". Lios says "I don't understand why it took two weeks for you to call." I thought is happened last Thursday??
The owner had just returned from a vacation of several weeks. He was getting his information from a note left by an employee. We don't know what that note said--it may have simply said "Thursday" instead of an actual date, so he assumed it was "last Thursday".