A woman is lecturing at an university on the dangers of drink,

The students listen intently and it makes them think.

"Drinking water is good for you,keeps you healthy and alive."

She drops a worm into a glass of water,the worm did survive.

She picks it up and puts it in a glass of wine,

The class  wait anxiously and hope it will be fine.

After a while the worm in the wine appears to be dead.

"Wine is to be avoided ,drink water instead."

"While performing an experiment like this,its amazing what one learns."

"Yes miss,"one student shouts,"If you drink wine you won't get worms "