Ferrets=chaotic neutral.
Source: friend has had them for 20 years. Hysterically funny but I can see how they'd be a destructive force in a grow.
I have 2 feral cats that live in my basement and I can only imagine what they would do to plants!
Fogey, I have had frustrations with rockwool too, you're not alone! A pre soak down to pH 5.5 and then squeeze extra water out is a good start, then only give water a little at a time and only if the cubes are pretty dry. And if you haven't played with rapidrooters... they are fun n friendly!!!