Any non cycling aquaintance will think you are mad. Go to a gym, and even the some of the fitness freaks will think you are mad. Difference is, get out on the bike and see which way the remarks go. I mainly ride offroad, and the only people you see are other bikers, horseriders and walkers. Surprising how many other nutters there are out on their bikes. It makes me realise that I am one of the few with Sanity. It is the others that must be mad not to enjoy the pleasure that a bike can give.