"...fluffy white cat that's content to sit on your lap without throwing up?"
Throwing up is completely normal for cats, life affirming even. They do it to expel balls of fur formerly belonging to other much smaller furry (and feathery) animals (hey it's all just keratin). It's why all good Dr Evils know to keep malt paste in a drawer next to the button marked "DESTROY HIGH VALUE STRATEGIC TARGET TO SPREAD MASS FEAR AND PANIC WHEN THE $TRILLION IN GOLD BULLION (AND MALT PASTE) DOESN'T GET DELIVERED".