Wesley's being besieged at all sides. If he refuses now, he'll appear rude and Cordelia will turn it into the bloody spanish inquisition as to why he's acting the way he is.

So he smiles weakly, "It would appear that you have all the contingencies covered. How can I refuse the offer of snacks and such lovely company."

He has a feeling that he's the subject of some private joke that only he doesn't know the punchline of. He turns to address Winifred.

"You do? Well, I...yes, I suppose I should like to get them back at some stage, Miss Burkle. If you no longer have need of them, of course."