My friend's ex thinks that marijuana is a "gateway drug," that people who try it will inevitably go on to harder stuff, like crack and heroin.
Me? I think that spinning is a gateway activity. Ask yourself this question: When you were a kid, did you ever used to spin in circles, then lie on the ground and watch the world go round?
I have a sneaking suspicion that every kid who spent recess spinning or playing fainting games later experimented with drugs. So watch your children!