I was reading an article on ananova.com a story that prisoners in a Bosnian jail were using pigeons to smuggle heroin into jail.  It seems that one of the rehabilitation programs in the jail involves raising pigeons, and someone in the program took it a little bit further than intended.  The “guilty” pigeon has been put behind birdy bars.  I’m surprised that the folks in charge of security didn’t see something like this as a possiblity of happening as a result of raising pigeons!