@Lucia135 The guest is required to acknowledge as part of the Air BNB process that the house rules have been read and agreed to. You are very clear in two places that there is no drinking. If a guest does not follow the rules, you send a message via Air BNB restating the rules and advising the consequence will be cancellation of the rest of the booking. If the guest persists, then you contact Air BNB. If the guest drinks elsewhere and cause permanent damage that you can document, then you notify the guest and later enter a claim through the Resolution Center. I would imagine these steps are not unfamiliar to you, so I wonder if you are looking for some other input from the host community. If not, then good luck.