My guest originally booked my least expensive room, and I upgraded them at no charge to a larger room. The first week was nice, and they booked a second week. The larger room was reserved so I moved them to the room they originally booked. While prepping the smaller room (which they were also using) I found some of my personal belongings and a bottle of whiskey that was given to me after my father died (it was his bottle) stashed in a corner. I also found that after they heavily soiled some of the towels, they threw them in the trash. How do I safely "evict" these guests...they are booked for another 5 days.