Why plate stealing makes perfect sense to your cat
To your cat, a plate left on the table is not your dinner being guarded. It is warm, strongly scented food sitting at nose height with no clear signal that it is out of bounds, especially if she has ever succeeded in snatching a piece before. Cats learn in single trials when the reward is tasty, so even one dropped chip or one licked plate teaches her that hovering near people at mealtimes pays. Hunger is rarely the whole story. Many plate thieves are well fed but bored, and the table is the most interesting place in the house at that hour. Others were fed from plates as kittens or learned that meowing and pawing eventually produces a hand-fed morsel. Understanding that this is opportunism plus habit, not defiance, points you toward management and a better alternative rather than scolding, which only teaches her to steal when you leave the room.
Make the table boring and the floor rewarding
Start with management, because a cat cannot practise a behaviour she cannot reach. Serve, eat, and clear in one flow, put leftovers straight into covered containers, and wipe surfaces so lingering smells do not keep her patrolling. Then give her a competing routine at the same time of day. Feed her own dinner in another room just before you sit down, or set out a lick mat or puzzle feeder that takes her ten focused minutes while you eat. An interactive play session with a wand toy shortly before meals also helps, since a cat who has hunted, caught, and then eaten settles far more readily than one who goes straight from a nap to watching you carve chicken. Keep the routine identical for every person in the household, including guests, because one person slipping her food undoes a week of consistency.
What to do in the moment she jumps up
Lift her down calmly and without comment, every time, and place her at her own feeder or play spot. Do not push her off dramatically, shout, or chase her, since attention and excitement can both reward the attempt. If she is persistent around a particular meal, such as a roast or fish, close the kitchen door while that food is being served and cleared until the new habit is solid. Check too that her own feeding schedule still suits her age and activity level, and that her food is stored where she cannot raid the bag between meals, which can leave her genuinely peckish at odd hours. If she guards stolen food, growls, or snaps when approached, do not grab it back with bare hands. Distract her into another room and tidy up afterwards, then discuss the guarding with your veterinarian, as pain or anxiety can sit underneath it.
Building the new habit over the coming weeks
Expect gradual change rather than an overnight switch, especially if plate stealing has paid off for months. Keep a simple note of which meals still trigger attempts and which pass quietly, since the pattern often shows she is worst when the house eats late or when her own dinner has slipped later than usual. Adjust her feeding time a little earlier on those days. Praise and brief play when she chooses her own spot during a meal reinforce the decision you want without using food from your plate as the prize. If an attempt still catches you out, put a follow-up question to KinsLe's Kimmy; she answers using the KinsLe Answers library.