[quote=@Cyrania]
<Snipped quote by Penny>

Well, it's become cannon that there's signs of the things being shot at.

If you take a look at Liu's post...
[/quote]

An interesting development but not one authored by me.

In the interest of forwarding the story we can say they blew out the vent safteys or some such with gun fire even though that isn't a particularly subtle way to do it.