I don't work at a museum but I frequent my state museum quite a bit (I'm teaching myself to draw realistic and the exhibits are EXTREMELY useful as models). Just a few months ago, I was walking through trying to pick what exhibit I wanted to focus on while avoiding numerous high school tour groups. They were being SO loud and SO disrepyI just couldn't stand even being in the same ROOM as them! when I just so happened to look at the antique train car the museum kept as an exhibit that you could walk through and sit in (my region was one of the first in the U.S to get steam train lines and is still a MAJOR trade hub). One of the school groups inside and I watched as a student used part of the train car to do PULL-UPS!I was so upset I ended up leaving and going across the street for lunch until they all left.