Corrected entry: When arguing with Carrie about having some of the festive cheese platter, Arthur goes for a "spoon to the wheel of brie", but from a previous episode (Ticker Treat - S4, E6) we found out that Arthur has banned soft cheeses along with celebrating Halloween. (01:10:20 - 01:10:55)
Corrected entry: When Arthur questions Carrie about having some of the festive cheese platter, he asks if it has anything to do with 'the appending arrival of Douglas' parents'. Appending is not the right word: he probably meant to say 'impending'. (01:10:20)
Correction: The character of Arthur is known to be obnoxious, boorish, and eccentric. He is often wrong and certainly does not seem teachable. Combined with his use of flowery speech makes the use of the word "appending" exactly his character style.
Correction: Arthur can be melodramatic and fussy. He probably made a big deal about banning soft cheeses at the time, but isn't very bothered by them in the long run.