74-year-old Boise woman arrested on suspicion of damaging library books with mayonnaise, liquids

I know the Pleasant Hill Library has to deal with budget cuts but at least this does not seem to be a problem.

74-year-old Boise woman arrested on suspicion of damaging library books with mayonnaise, liquids | Local News | Idaho Statesman

Please also read the similar stories on the right side of the link. I can't wait to find out the motive.