I came upon this cup of juice in the fridge with this dire note attached. I figured Kristen didn't want anyone to finish her lemonade. Turns out, it was lemonade with a very generous dose of lime juice added in. Kristen's the kind of kid that likes to drink/suck on lemons and limes.
Apparently Amy almost died. She took a sip and found out the hard way to always obey Kristen's notes.