Hotels in 2026 have adopted "Zero-Tolerance" policies toward aggressive or anti-social behavior. This includes verbal or physical abuse of staff, excessive noise that disturbs other guests after 10:00 PM, and any form of vandalism or property damage. Most modern hotels also strictly prohibit the use of illegal substances (including vaping in non-smoking rooms, which is detected by sensitive chemical sensors) and "unauthorized gatherings" or parties involving non-registered guests. Another major focus in 2026 is "Customer Harassment"—excessive, unreasonable demands or threatening to post negative social media reviews to extort free services. If a guest displays these behaviors, hotels now have the right to evict them immediately without a refund and, in some cases, add their name to a "shared industry blacklist" used by major global chains to prevent future bookings.