With Mrs. Pumphrey not sticking to the prescribed diet, James takes what she probably considers drastic measures, all in the name of observation to ensure there's nothing more serious than he being overweight and listless, and takes charge of Tricki Woo at the Farnons until James is certain he's all right. Siegfried and Tristan will ensure that Mrs. Pumphrey's indulgent care package of a hamperful of rich human food for Tricki Woo will not go to waste. In this situation, Siegfried comes to the realization that there are marked similarities between Tricki Woo and Tristan, who is determined to head back to college in a week's time, which he can only do if Siegfried continues to spoil him as he's done all these years and provides him with the necessary funds. Tristan taking over Tricki Woo's care, the ultimate goal to get him to lose weight, to show Siegfried that he's worth the college money, may be more difficult than Tristan expects, even perhaps more difficult than what he imagines was supposed to be Casey's full examination which never happened, Casey being Joe Mulligan's ever growling Belgian Shepherd with bowel issues of his own.
—Huggo