Some of us love Gillian McKeith and her programmes "You are what you eat" where she frequently talks about healthy eating, excercise and "the perfect poo". Actually, that last thing is the part I like the least, she seems to be a bit obsessed with poo but she may have her reasons....look what I found on the internet:
http://www.gillianmckeith.info/yourbody/health/stoolanalysispoochart.php
http://en.wikipedia.org/wiki/Human_feces
http://www.poopreport.com/Poll/bristol_scale.html
http://en.wikipedia.org/wiki/Bristol_Stool_Scale