Lactdose
You let someone eat something with dairy in it and then you cackle like a madman when they start wheezing and crying.
My cousin ate my pizza and didn't know it had cheese. He wheezed and cried like a baby.
My friend ate my soup and didn't know it had milk. She wheezed and cried like a toddler.
My sister ate my cake and didn't know it had cream. She wheezed and cried like a ghost.