[Morecambe Ex Pat]

Just to play devil's advocate
All the smack heads I know started on baby milk

There has always been the lame argument that once a person tries cannabis that they will automatically move on to stronger drugs. Many users of the stronger drugs, who I have known personally, did start on cannabis and then moved on to the stronger stuff but they would have gone in that direction anyway. It wasn't the cannabis that turned them into cocaine addicts but their personalities which drove them to find something that was missing from their lives. I am not saying that cannabis is 100% safe because any 'poison' you inflict on your body has to have some effect but there is more danger from the tobacco in a joint than there is from the cannabis. The obvious answer is to leave both well alone but if that doesn't get you, the artificial additives and preservatives in the food we eat probably will. They won't ban them because they are for our own good.
I think there is a greater danger to modern drinkers who quaff these alcopop type drinks and energetically dance in a crowded night club. Dehydration with a high concentration of alcohol in your system is a great problem and can lead to some serious organ damage.