Lactdose
You trick someone with a dairy allergy into eating something with milk in it and laugh like a hyena when they throw up.
My cousin ate my mom's cake and didn't know it had cream cheese. I watched him cry and it was glorious.
My friend thought my pizza was vegan. It had cheese. She screamed and ran out.
My sister told me my soup was gluten-free. It had milk. I died a little.