Class Pet Mishap

So there was this guinea pig named Bubbles in our biology class. My friend Alex and I thought it would be funny to sneak some of his lunch into the cage. We didn't think he'd eat the carrot pieces since they weren't part of his diet. Next thing we know, Bubbles is acting all weird, coughing up furballs and getting sleepy during our science project presentations. Our teacher gave us detention for animal cruelty. I still feel bad about it but sometimes laughing at the memory makes me forget how guilty I am.