This is not how it goes usually. I have been on a lot of campsites, and never has anything like that happened before. Both those cats i think were very interested in getting onto people. The first one, as i left, jumped onto me when i wanted to pet her for good byes, then went onto my back, haha. Another guest helped me remove it, as she was clawing into my windbreaker jacket.
The second cat like i said had already jumped onto me as i was sitting there.
In the tent they were both mostly on top of me, the first one later got off as she stayed much longer.
I think there is a very good chance at both those mentioned campsites that this could happen. I assume on the second it will almost be guaranteed, haha.