L’hai servita su un piatto d’argento
Sometimes, following a statement, it is almost natural to give a certain answer, often ironic or full of a more or less veiled sarcasm.
The answer (or joke or comment) is therefore served on a silver plate. So we are put, by our interlocutor, in a position to give an answer that seems almost necessary, or at least strictly consequential.
This teaches us to evaluate our words also in relation to the consequent response that could arise, so we should decide whether or not to serve the answer on a shiny silver plate.