Very clever. Figured out it wasn't from Earth and took care of it. Far better than the Doctor imagined the original Torchwood might've done. But this was Jack's Torchwood, wasn't it?

"Ooooh, the postal system probably knocked it around a bit, explains all the grematergar radiation leaking out of there," the Doctor said with a nod, as though this were just about as normal as humidity causing rain.

He sniffed and nodded his head backwards. "We've got to dispose of it before it rips a hole in the fabric of time. Very nasty, that."