Girl Kicked Out of Prom Because of Leering Dads
The girl was told she was making boys think impure thoughts.

When I see the work "impure" used like this, it reminds me of the negative connotations we so strongly place on sex in general, and women in particular. To insist that even a sexual thought is somehow repugnant is a correlation that is bizarre, given the fact that we don't attribute similar distaste for truly gross thoughts like those involving violence and bigotry.