Dog Screamer.

http://smartdawgs.com/dog-whisperer/

http://www.esquire.com/features/ESQ1006-ESQ100_20-21.FINAL.rev_1

http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2006/10/15/CMGPHL9D1N1.DTL

http://www.stevedalepetworld.com/index.php?option=com_content&task=view&id=203&Itemid=71

http://www.marinij.com/homeandgarden/ci_4720342/

http://www.nytimes.com/2006/08/31/opinion/31derr.html?_r=2

http://www.animalbehavior.net/visitors/CesarMillan_Luescher.htm