interrupting a person who is reading a book is:
scandalous, and must not be done unless there is an emergency.
not a pleasant thing to do, but okay if one asks the person if they are willing to pause in their reading, then makes the interruption brief.
not okay to continue if, when asked, the reader is unwilling to pause from reading.
okay if the person is reading in a public place.
okay if the person is reading in a shared living area of the house.
always okay anywhere, for any reason.
other (comment, please).
an important activity that should be respected.
a form of entertainment, but no more important than watching TV.
only good for gathering information.
not a waste of time.
generally a waste of time.