Woman Trained Dog With Harry Potter Spells?

A “Harry Potter” fan named her dog Remus . . . after an elf character in the series.  But her fandom goes WAY deeper than that.  Because she actually taught him to respond to Harry Potter SPELLS.  For instance, “Accio Ball” means “bring the ball” . . . because in Harry’s world, you say “Accio” that when you want something to magically come to you. “Immobulus” is the freeze spell, and the dreaded “Avada Kedavra” . . . the DEATH SPELL!