- Berserk Button: After Gantlos injures Artü, he makes the mistake of mockingly asking Roxy why she's so distraught about it as "it's just a dog". This enrages Roxy enough to trigger her transformation into her fairy form for the first time.
- Hostage For Macguffin: The Wizards of the Black Circle kidnap Roxy and her father in an attempt to get the White Circle from the Winx this way.
- Unusually Uninteresting Sight: When Roxy first tries to explain to her father that she's fairy, he doesn't seem particularly surprised that Artü the dog is speaking to him. However, it turns out it was actually Duman impersonating him in order to capture Roxy, after the other wizards had already abducted the real Klaus.
- Villains Out Shopping: Ogron and Anagan just sort of casually hang out at the Frutti Music Bar while waiting for the Winx to show up with the White Circle, with Sky commenting to Bloom over the phone that it's difficult for him and the other Specialists (who are working there) to act like there's nothing wrong.
Recap / Winx Club S 4 E 12 Dad Im A Fairy
Also known as The Pet's Pursuit in the Nickelodeon dub.