555 Chit i am amazed they still use stuff like that these days, give the litluns nightgmares.

Always remember our biology teacher served in Northern Ireland and the lesson on lungs with a set of pigs lungs. He used to regale us with stories of the troubles snd what made this lesson memorable is him telling us one of his muckers got shot in the chest so he stabbed one side of the lungs to demonstrate that even though you have two lungs, one collapsd lung can cause the other to collapse - his lessons were certainly memorable.