A Man's Best Friend

After a spell is interrupted, Pinkie starts acting like a dog. Which means the life of a pet owner is forced on Anon while a guilt-ridden Twilight tries to work out what went wrong.

Pinkie being Pinkie gets in the way of one of Twilight's spell. Anon takes up the responsibility of being a pet owner so Twilight can work out a fix.
But how can anyone handle a Pinkie even more hyperactive than before?

Everyone