i had no idea that leaving excrement at the scene of a crime was a typical juvenile burglar type of thing. they also like to eat, and somehow don't care about all the dna they are leaving around. i guess it just shows how stunted emotionally the perp may be. i was not sure how to google this.....:shocked2: Now THERE'S a topic to research! It's evidently kind of rare, but ....sends a message. And often people are more upset about the calling card than they are about the actual burglary. The shocked outrage is the response the perp is looking for.
(material from 'Criminal Investigation' by Ronald F. Becker)