Si & Am

Si and Am are two mischievious felines who were responsible for much of Lady's hardship in the Walt Disney movie Lady and The Tramp as well as the novel it was based off: they are, as their names suggest, Siamese cats and are shown as sneaky and manipulative of their owner: such as feigning injury only to shake each others tail in a form of victory after being carried away - taking delight in getting Lady into trouble.