Different scenario than you are imagining, it's pretty popular to make a mixed alcoholic punch/drink by mixing whatever they can get in a large vessel like a travel cooler (chosen because easy to get and they have the convenient spigot). So literally opening bottles of juices, sodas, alcohols, etc. and just pouring them straight into the cooler to mix and then serving into cups from it.
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u/Desperate_Damage4632 12d ago
Pre-spiking a cooler full of drinks makes absolutely no sense. This is made up.