As antenatal classes are on peoples minds shall I share my first one? Ah go on then.
First thing they did was show us a video of several births (hospital, home etc). My one memory of the video was the home birth. The lady, while surrounded by several family members, 2 midwives and a film-crew was screaming "dear god, please won't someone help me".
Way to go midwives. Making a room full of first time mums feel bloody terrified.
Next was dropping a small plastic doll through a huge plastic pelvis to demonstrate the baby dropping out. Yes, like that happens. 
Then it was break time. We were allowed a small glass of orange squash and ONE biscuit. Most of us wanted coffee and a fag, but they wouldn't let us leave the room! (And yes, I smoked then, and no I don't smoke any more)
Ah the final phase. Meditation. We were told to lie on the floor, heads under the chairs and listen to the pre-recorded sounds of waves and whales. This was interspersed with the live sounds of the local seagulls and the horns of the massive container ship leaving port. This went on for waaaaaay longer than necessary,
I never went back.
(And nor did most of the others)
I'm sure most classes are much better. Terrible it is round here though! 