@Daniela91 We had this happen to us twice (on back to back sits ) the first time was for a medical emergency which could unfortunately happen to anyone ( host or sitter ) they had to be medevacked from a cruise ship and returned to home country for treatment . Whilst it was stressful to have to reorganise our schedule and find alternative accommodation our main concern was for the host who was really ill. They offered that we could still stay on at their home with them when they got back - we declined as it didn’t seem appropriate as they were very ill .
The following sit we were stunned when it happened again !! However this time was not due to an extraordinary circumstance it was because the host got tickets for a social event and decided to return early to attend it but didn’t inform us !!!
https://forum.trustedhousesitters.com/t/home-owner-curtails-sit-by-coming-back-several-days-early
Since these experiences we now always have a Plan B in mind .