They have time to do stuff like conduct bizarre surveillance operations.

A Detroit-area couple, the Dorfmans, have being spying on Gordie and Colleen Howe as part of a dispute. In return, the Howes have filed suit against them:

From thestar.com:

The Howes allege the Dorfmans have had a camera snapping photos of their house every five seconds – more than 17,000 photos a day.

The Dorfmans say they believe the Howes have used their home for business purposes since 2006 in violation of homeowner association rules and township law.