Unwanted guests, lets hear your story....

Had a similar situation with a man in his 50's? a few years ago. He would wander around the campground visiting, tho he always moved on if we said we were going to do something etc. The biggest concern about him tho was he had no idea where his campsight was, where he lived when at home, would always give a different answer when asked his name, etc. After he visited with another lady and myself one day we finally went to the campground host - it was in the low 30's, he had on a t-shirt, and we were very concerned about his safety. After that we always saw him with someone else.