Aibu to think, that if he really gave a shit about the puppy he's just adopted he would not have had it delivered in a carrier via the front door of no.10 with all the attendant camera flashes and noise.
Just thinking back to adopting my dogs and, both times, their wellbeing was paramount. And they joined our family at a point where we had time to spend with them, gaining their trust, building that bond and learning how best to develop a two-way communication with them.
Surely he's too busy to devote himself to this important task at the moment?