Things Harry could have done

[Joey]

No: HPFGUIDX 189305

<snip> 
>  Eric:
> Like, for instance, the Veelas.  If I'd been Harry, or at least tasked with taking the DEs out of commission, I'd have wanted to find a way to deploy some Veelas and get them dancing when Lord V comes to
Hogwarts looking for trouble. Since it's clearly stated in GoF that
women are immune, I'd just have the guys waiting back in the castle
while Hermione and the witches were dealing with the hypnotized male
DEs.

Joey:
Trouble is - aren't Veelas counted as dark creatures? Also, logistics - I've never heard of any in Britain, they're hinted as mostly being Eastern European (though of course the Delacours are French).