Author's note: First one is a comedy skit in the anime, Hetalia's style.
In this version Carin knows about Pyrrah helping Jaune out and he didn't make friends with Jaune after he saved his butt.
In a forest, a distance away from beacon academy, Cardin strolled up to everyone's water bottles that were laying on the table. He and his class were doing some strength exercises. A prefect time to get his revenge. He looked around and saw his target's bottle. Pyrrha Nikos written on name tags that were taped on the container right next to his.
When looking around, he saw no one peering over at him, all doing there own thing. Good. He waste no time to get the water bottle, opened it, got out test tube holding some clear liquid and pour some of into the bottle. What was the liquid? Heck if he knew. All he did know that the teacher he snag it from said that it would make any grim and human act all crazy for several hours.
After finishing, he put the lid back on and placed the container back on the table.
A few seconds after Cardin left Jaune walked by the table covered in head to toe in ash.
"Boy Weiss has packed some extra strong fire dust today?" He asked himself.
Just then, he let out a sneeze. At the corner of his eye he spotted two name tags falling.
Panic sprang in as he saw who's names were on them. Pyrrha's and Cardin's.
Sweet apples, not those two.
"Oh no, they're going to kill me."
He looked at the names then at the bottles, back and forth, but which one was it? Peering over he saw the two owners were off doing their assignments. In a hasty move, he pluck up the tags put on a water bottle, and dashed out of there. He still didn't know which on was which, but he wasn't going to let either of them know about unless they asked.
A bit of time went by before Cardin finished and walked back to the table. A smirk appeared on face when found Pyrrha drinking her bottle. After seeing the girl finished and head back to what she was doing, Cardin walked up to his and grabbed it.
Meanwhile, Jaune ran into his red head teammate.
"Hey, Pyrrha I was wondering-"
"YEAH!"
The two students turned to see Cardin smiling and happy tossing up leaves, like a little child.
"I LOVE FLOWERS! FLOWERS FOR EVERYBODY! HA, HA!"
"Wow, what has gotten into him?" Jaune asked.
However, no one, not even Cardin himself could answer that question.