Timing belt failure?

What is your question?

Mechanics claim rodents nested in the cam belt drive system and that had jammed the gearing and caused the entire electric system to shut down to prevent disaster in the entire drive train. Anybody ever heard that one before? It had been parked in a tool/parking barn unstarted for about 4 weeks. Previously, a new cam belt, water pump kit and attendant parts had been installed and driven for several week before parking. Then the engine failed to start on first engagement of the starter gear with the flywheel.