I love my Badminton but a lot of people I know haven't tried it and think it's a soft game, they have only seen people playing what is referred to as “patting” the shuttle over the net gently without moving your feet at all.
They tend to either change their minds as soon as they see it properly played and start enjoying the sport or go and try to play it and get angry that they cannot play the way they think it should be played.