That itchy spot in your brain

In the course of one night my rats managed to completely bore through the plastic bottom part of their cage in a perfect circle-shaped hole, cruise on out through said hole, hunt down the tiny stuffed lion I had on my dresser, completely rip it open limb to limb, remove all the stuffing from the inside, and carry it back to their nest (I gotta hand it to them- that stuffing fluff would be comfy to curl up in).
They're keeping dynamite in there, I swear. Little rat-sized dynamite.
The pranksters themselves: