What was your first newbie moment?

We made a big impression at a beautiful little campground in Chama, NM. While trying to back the 5th wheel, we accidentally ran into an rv neighbor's satellite dish. The next day we rode the Cumbres and Toltec scenic train. After arriving back at the campgrounds we heard from several sources that our two dogs somehow escaped the 5th wheel and roamed free part of the day. We mistakenly thought the door was closed and locked tight, but our larger dog was able to push the door open. We took a little kidding from our fellow campers.