"There- There were instructions?" Ron asked blankly, looking down at the vial in his hands. Or, well, his vibrantly pink paws.

Barely waiting to take in the looks on the twins' faces at that, Harry wheeled right back around, nearly ran into Hermione, gestured helplessly while still trying to smother his giggles, and then shook his head and darted past Ginny to get out of earshot before he could lose it.