Ianto shrugged. "Oi," he said, "don't go knocking the vinegar until you've at least tried how it is, yeah?" He put it down on the table in between the two of them. "Maybe it's not your fancy, but you've got to at least try it, if nothing else." Ianto took a few more fries, munching on them thoughtfully, before picking up the ketchup and mustard, opening up the top of his bun and applying them liberally as well.