I recently had a guest who appeared to have dyed her hair whilst sitting in my bed - my sheets, pillow cases and bedside rug were were all badly stained - I was mad. The guest agreed to purchase new set but she left without doing so.
I also discovered that the bed frame was damaged - new bed just purchased! I could only conclude that they were jumping, whatever and I only discovered when a new guest reported that the bed sank in the middle.
What is a standard or reasonable deposit collected from guest to encourage guest to treat place with care and regard?