Quoted By:
We have about 6 forest service cabins in my area and this happens all the time. You have to pay money to reserve them and people just think they can show up, "oh... I didn't know you had to reserve these. You're not going to make us walk back 5 miles through the forest at night are you? There's plenty of room for us" Or they are already inside the cabin and you show up and have to kick them out.
I don't let them in and kick them out when they are there unless they were near death.