A/N: There are two types of contact solution... one is normal saline ish, and the other one if not used properly...
Background: Yolei occasionally wears contacts instead of glasses when doing certain activities.
Ken had just finished putting on his gi and was preparing to meet up with Yolei and go to one of the training rooms when he suddenly heard her scream from the bathroom.
"Yolei!"
Not caring that he might be bursting in on something, he ran out of his room and across the hall to the bathroom he had heard her cry come from. Thankfully, the door was open so he let himself in. "Yolei! Are you okay?"
Yolei was cursing and had her head in the sink. She had turned the faucet on full blast, diverting the flow with her hands so that it was flushing her right eye.
"I'm fine," she replied, sounding peeved. "I just put in a contact and it burned."
Ken blinked. "A contact? But they don't do that... what solution did you use?"
"I ran out, so I grabbed one of the leftover bottles from the cabinet... I figured it'd be okay..."
Ken immediately opened said cabinet. However, he only had to look at the labels to discover what the entire problem was.
In spite of himself, he burst out laughing and had to cover his mouth. I'm such a horrible person, but this is kind of ridiculous.
"This is hydrogen peroxide! Of course it burns!"
Yolei began cursing some more.