(https://forum.twguild.org/proxy.php?request=http%3A%2F%2Fwapentake.files.wordpress.com%2F2007%2F05%2Fmilk-bag.jpg&hash=440530ae0f0af86ab3f24e60b97ecf0be87ed103)
[youtube=425,350]http://www.youtube.com/watch?v=NtQ1ahZmWIg[/youtube]
You are now learned on the Canadian way
[youtube=600,450]uKQcWOfpqGo[/youtube].
Understanding the concept and visualizing it doesn't make it any more right or normal. :D :D :D