Disclaimer: I don't own Harry Potter, Yu-Gi-Oh, Hedwig, or Crookshanks.
Bakura ruffled his feathers irritably, glaring down at the ugly oversized cat his Aganai's scholar-friend had bought earlier that day with an odd mix of familiarity and trepidation. He knew that cat. He knew that he knew him, so why couldn't he remember him. He was sure he would remember such an ugly flat face if he'd seen it before. The cat, Bakura couldn't be bothered to remember a simple pet's name when their owners were so much easier to tell apart, returned his glare with raised hackles. "What are you staring at, Snowpuff? You looking to become my lunch, feathered fool." Had he still had a jaw, Bakura was sure it would be on the floor now.
"Marik!"
Harry looked up suddenly when he heard Hedwig screeching, surprised to find her on her back on the ground with Crookshanks sitting nearby, a paw over his face in what Harry would call mortification on any human. As he watched, Hedwig seemed to get over whatever had come over her and stood up, walking closer to Crookshanks before hooting softly and then flying off.
~An Hour Later~
Marik watched the rat who belonged to the red-head who annoyed his Punishment, remembering Bakura's earlier words. "The guard-pest's rat may be a threat. Keep an eye open and maybe we'll finish both our sentences early." He would do more than that. He would take the not-rat down and give it to the not-dog. It was just a shame he wasn't allowed to kill the not-rat himself.
END
I had really planned on leaving this as a one-shot, but I couldn't resist. Inspiration just hit.