throw yang under the bus

"It wasn't my fault," Weiss said to ruby. "yang pushed me as I was handling a container of dust and it flew into your locker."

"so its yang's fault," asked ruby with sceptitism.

"yes I was just going to switch the container because I saw the seal wasn't perfect and the brute just hits my back causing me to let go."

"and just happens to fly into my locker," asked ruby with doubt clear in her voice.

"I swear ruby I swear on my family name it was all yang's fault. look at the fact that she ran out of the room the moment you showed up," Weiss said with a bit of hope as she saw ruby thinking about what she said.