It’s bad to touch other people’s property.
Timmy is visiting a neighbor Norman who has an antique model train collections.
Timmy loves trains and wants to see Norman's collection.
Timmy looks at the train and asks Normal questions about a few of them.
Timmy grabs the trains without asks and accidentally breaks one of Norman's most expensive trains.
Norman teaches Tim about trains and even gives him a couple more common ones to help him start his collection.
Norman asks Tim to leave and says that he is not invited back anymore.