Sometimes I think people are just getting dumber:
1. A guy tried to dump six puppies and their mother by putting them in a suitcase and leaving them outside a store - with his address label still attached to the suitcase.
2. A drug dealer was so careless with his wares he didn't notice his step-kid had taken 50 (!) doses of Heroin to school for show-and-tell.
("What's the matter? I brought enough for everyone!)