broody hen?

Here is a link to broody hens
 http://chat.allotment-garden.org/index.php?topic=71657.0

I have also had the same problem - I did not want chicks.  I followed advice given by forum members.  Put hen in a cage with a wire bottom with food & water for 48 hours.  I was a bit concerned at night so ended up putting cage in back of my husbands land rover over night.  This appears to have worked a treat.  Thanks all for the advice.