there is such as spiking someone's drink which is when you sneakily add alcohol to someone's soft drink; but i wonder if there is the opposite: such thing as "unspiking" someone's drink, like if someone had a beer in anticipation of getting drunk but then you sneakily added ginger to it which turned it into ginger beer and therefore they get the unexpected surprise of staying sober because that makes it ginger beer in which ginger beer doesn't contain alcohol
