More than once a truck or SUV had stopped in front of the house to drop off Mouse, so Magnus knew just how gregarious his companion was. "The other Magnus no longer used magic, and honestly was a very timid person." Something which baffled the warlock to no end.
"I've made it up to him with a large steak dinner, so he'll probably stick closer to home for a bit." Which made him even happier that he'd gotten the dog his own room.