What do you leave behind when gone for the day?

I leave my fifth wheel behind.. LOL But I have seen lounge chairs.. BBQ grills, Sun shades, and all types of towels and stuff. I don't believe there is a big problem of stuff disappearing. At least it has never happen to me. I've been Rving for over 40 years. Hope this helped you. Oh and I have also seen the pick nick table that belongs to the camp sight moved into the parking area.