Chapter Text
It started when Jounouchi made a bet with Honda that he couldn't go a month without yelling at Kaiba. Jou being Jou, he determined that the best (perhaps only) way of doing this was to simply avoid any interaction with Kaiba at all. It was summer break, after all; since they weren't in school, avoiding Kaiba and all things Kaiba shouldn't be that big a task.
Kaiba, being Kaiba, knew none of this. All he knew was that suddenly Jou was not around to tease and make get flustered and color and snap. (Teasing puppies was the best way to play with them, as far as he was concerned.)
This was unacceptable. However, it would not do to actually seek his puppy out, since that would mean revealing that he actually desired the Puppy's presence.
And so he began his campaign to force the puppy to stop ignoring him and avoiding him, and get him to come back home.
As it were.
Well, if the puppy wasn't going to show up to be teased, and Kaiba couldn't go and find him, then the puppy teasing would have to go through some intermediary--but it still had to come from him, clearly. No messenger. Otogi's dressing HIS PUPPY in a dog suit had been quite enough, thank you very much.
However, there was still a backdoor programmed into each and every one of the duel disc systems for security, and they were still rigged for remote surveilance whenever turned on, and so, Kaiba decided, they provided the best option for recreational remote puppy teasing.
The first little bit of hacking was fairly subtle--it took the rest of the gang the better part of a duel to figure out why Jou kept going purple and yelling about Kaiba every time he played a card--until Yugi finally broke down and asked Yami what he was sniggering about. At which point he pointed out that the standard sound for placing a card on the field had been replaced (for Jou at least) with a single puppy bark.
In the end, Jou's opponent wound up surrendering out of sheer pants-wetting terror of Jou's vicious fury which, lacking a better outlet, he was taking out on said opponent.
(a thorough examination after the duel showed definitively that there was no mute button anywhere that they could find. Jou snarled and grumbled all day.)