I reject your headcanon and substitute my own. · 3:27am Nov 2nd, 2014
Why does everyone assume doughnut Joe's place is in Canterlot? I mean, sure, the mane six eat there with Celestia after the Worst Night Ever (trademark pending), but what's to say Celestia didn't just follow them home? I'm sure she makes occasional visits there anyway, seeing as her Most Faithful Student (trademark pending) lives there. And besides, we see him on the Friendship Express heading towards Canterlot with his creation, Doughnutopia.