Deteriorating Paint
 

The picture on this page is of a gnawed windowsill that contains lead.  The child living in this home suffers from Pica and gnawed through the paint down to bare wood.

Pica is an appetite for items that are not nutritive, such as paint, paper, and chalk.  It can also be manifested as an abnormal craving for food ingredients or other things that may be considered foods, like raw potatoes and flour.

Pica is most common in pregnant women and young children. 

The danger with eating paint and other lead containing substances is that the child could suffer drain damage and much more from lead poisoning.