Your dog is not being greedy at the table. She is doing simple maths: hovering beside guests pays, often within seconds, in rich food she never gets any other way. No amount of training will outwork that reward while kind visitors keep paying it, so the boundary has to be set with the people first and the dog second — and it has to be a rule the whole household states the same way.
Decide the rule before anyone sits down
Agree the wording at home first, because a boundary described three different ways will be negotiated three different ways. The clearest version is absolute: nobody feeds the dog during meals, and nobody feeds her from their plate at any time. Absolute rules survive guests in a way that softer ones do not — the moment one person is allowed to slip her a little something, every other guest becomes the strict one by comparison and she learns to work the room. Decide also what happens instead, because guests who feed dogs are usually being friendly, not defiant: they need an approved way to be generous that does not happen at the table.
Give guests a better job than feeding
Put a small pot of her own treats somewhere obvious, away from the dining chairs, and tell guests the house ritual plainly: if you would like to treat her, wait until plates are cleared, ask her for a sit by her bowl, and give her one of these. That single change protects her stomach from rich, salty and sometimes unsafe table food, and it protects your training, because the treat now arrives for calm behaviour in the right place instead of for staring and pawing beside a chair.
Set up where she waits while you eat
During the meal itself, give her a defined place and something to do there. A mat or bed positioned where she can see the room but is not within nose-reach of laps works well, paired with a long-lasting chew or a stuffed food toy she only gets at dinner time. Practise this settle on family-only evenings first, rewarding her for staying on the mat in short stretches, so the routine is already familiar before guests add temptation. If she migrates hopefully towards the table, lead her back without ceremony, renew the chew, and shorten the distance she is being asked to manage — success at four metres beats repeated failure at two.
Handle the soft-hearted guest without a scene
Every family has one person who will feed her anyway, usually while saying she looked hungry. Deal with it privately and kindly rather than policing the table mid-meal: explain that her stomach reacts badly to rich food, that the vet has asked for her diet to stay steady if that is true in your case, or simply that you are asking everyone, as a favour, because her begging has become hard to live with. If slips still happen, quietly reduce opportunity — seat that guest away from her mat side of the table, clear plates promptly, and keep serving dishes in the kitchen rather than within her audience reach.
Reset the habit after guests go home
Hold the same line at home — no feeding from plates, treats only at her bowl, calm praise for settling on her mat without being asked. Within a week or two of consistent meals, most dogs return to ignoring the table because it has genuinely stopped paying. Writing down who feeds her, what she is given and when in KinsLe using Care Teams keeps feeding as an assigned, visible duty for named people, so guests and family alike can see that her meals and treats are already covered.