LOL i think you must of hers wrong or your smart friend isn,t smart.

You should kill the male if you have no use for it because the polen from the balls can travel on your clothes into your grow room full of females , it can travel for miles in the wind and even lie dormant in your grow room for months and months waiting to polinate your new plants. The only reason to keep it would be to make your own seeds.
The female plants are the ones you want for bud .