Move their fat bottoms away from the table when they’re done eating.<p>On a more serious note, you are of course correct, though I can imagine that having a link between somewhat-abstract calories and a timespan that you know you need to work out to get rid off these calories might help to restrict yourself? As in, “This cake has 600 calories” doesn’t sound like a lot, “I have to work out for an hour on a level that will leave me entirely crushed if I eat this cake” may be more relatable?